How Much Is A Solar Water Heater?

Estimating the Cost and Energy Efficiency of a Solar Water Heater

  • Estimate the annual running costs of a solar water heating system before making a purchase decision and compare multiple solutions. If you invest in a more energy-efficient system, which will almost certainly cost more to acquire, you may calculate the energy savings and payback period over a longer period of time. Before you can pick and compare the costs of various systems, you must first determine the size of the system that will be necessary for your residence. For a solar water heating system, you will need the following information to calculate the annual running costs: The solar energy factor (SEF) of the system is calculated.
  • The kind of auxiliary tank fuel (gas or electric) and its expenses (current rates may be obtained from your local utility)

After that, perform the following calculations: Calculate the amount of energy required to heat water depending on the quantity of fuel used or the number of gallons of hot water required.


Daily Water Heating Energy

Natural gas, for example, is sometimes sold in units known as ″therms.″ 100 000 British thermal units are included in one (1) therm (Btus).Examine your utility bills to see how much fuel you consume during the summer months, when gas is not utilized for space heating.For example, if you use gas for cooking and drying clothing, you would wish to deduct around 60% of your summer total energy use as the energy required to heat water.When it comes to traditional water heaters, the Uniform Energy Factor (UEF) measures their energy efficiency.The UEF measures the quantity of hot water generated per unit of fuel consumed in a standard test.The higher the value of the UEF, the more energy-efficient the water heating system.

  • Ten CFR Part 430, Subpart B, Appendix E of the Code of Federal Regulations describes the Department of Energy’s test procedure for determining UEF.
  • Household gas water heaters must have a UEF of at least 0.64 in order to be compliant.
  • The UEF for electric heaters is assumed to be one since all of the power is transferred to the water.
  • Daily water heating energy = (summer months fuel use)*EF*0.6/ (summer months fuel use)*EF*0.6/ (summer months fuel use)*EF*0.6/ (number of days in summer months) The quantity of fuel consumed is proportional to the amount of water consumed and the temperature.
  • It is defined as the amount of energy necessary to elevate one pound (lbs) of water one degree Fahrenheit in temperature (F).
  • Heat energy for daily water heating = (gallons of hot water per day)*(8.35 pounds per gallon)*(1 btu/lbs per degree Fahrenheit)*(1 btu/lbs per degree Fahrenheit)* (Hot water temperature- Cold water temperature).
  1. Water heating energy is calculated using the DOE test procedure for hot water heaters.
  2. It is assumed that the incoming water temperature is 58 degrees Fahrenheit and the hot water temperature is 135 degrees Fahrenheit.
  3. Total hot water production is 64.3 gallons per day, which is the average usage for a household of three people.
  4. With natural gas, this results in a daily water heating energy consumption of 0.4105 therms/day, or 12.03 kWh per day with electricity.
  5. It is often preferable to size a solar system based on benchmark loads or the number of bedrooms in a house rather than actual consumption, which is subject to change depending on the number and behavior of residents of a home.

Annual Cost of Convention Natural Gas Heating

The Daily Water Heating Energy, the efficiency of the conventional heater, and the price of fuel all play a role in how much fuel is used for conventional heating on an annual basis.Estimated annual cost of operation = (365 days/year) * (Daily Water Heating Energy therms/day) 41,045 UEFSEF UEFSEF Fuel Cost ($/thermBtu) = estimated annual cost of operating As an illustration, use the following benchmark values for daily energy consumption: UEF of 0.64 and a natural gas price of $1.10/therm: CO2 equivalent per day (365 days/year) = (0.4105 therms/day) x (0.64 USEF) = (1.10 USEF/therm) therm) = $257.52/year (estimated yearly running cost) Fuel Cost (therm) Example: Assuming the SEF is 1.1 and the cost of gas is $1.10/therm, the equation is 365 0.4105 1.1 $1.10 = $149.83.Based on the DOE hot water heater test procedure, the energy consumption per day in the above equations is based on an incoming water temperature of 58°F, a hot water temperature of 135°F, and a total hot water production of 64.3 gallons per day, which is the average consumption for a household of three people.


You must know or be able to convert the unit cost of power expressed in kilowatt-hours (kWh).In 2021, the average electricity rate in the United States will be 10.42 cents per kilowatt-hour.With an average power rate of 30.55 cents per kilowatt-hour, Hawaii has the highest average electricity rate in the world.The average electricity rate in Louisiana is 7.01 cents per kilowatt-hour, making it the state with the lowest average power rate.With a UEF of 1.0 and an electricity price of $0.1042/kWh, the following is an example of Annual Water Heating Costs for an electric water heater: Annual Water Heating Cost = (365 days/year) x 12.03 kWh/day x (1.0) SEF x ($0.1042) = $457.54/year for an electric water heater.This example illustrates how electricity is more expensive than natural gas, which is a situation that occurs frequently.

What Is Solar Water Heating?

Sunlight is harnessed for the purpose of residential water heating using solar water heating systems.Given that this technology is based on an environmentally friendly source of energy, implementing it will result in a reduction in your household’s carbon footprint.Solar energy is typically associated with solar panels, which are devices that transform the energy of the sun into electrical current.Solar thermal panels, on the other hand, make it feasible to harness the energy of the sun for the purpose of heating water.For a household of four, a solar water heating system would provide roughly one-third of the hot water they require each day.If you invest in this sort of renewable heating system for a three-bedroom semi-detached house, you may save between £55 and £80 on your yearly water-heating expenses, according to the Energy Saving Trust.

  • Homeowners who install a solar water heating system may also be eligible for the Renewable Heat Incentive (RHI) program, which is intended to financially reward households that utilize renewable energy to heat their homes.
  • If you are considering acquiring a solar water heating system, you have come to the right place!
  • Complete the form at the top of this page and you will receive up to four non-binding quotations from some of the best professional installers in the country at no cost to you whatsoever.

How Does Solar Water Heating Work?

Using solar energy to heat water for residential or business needs, a solar water heating system can save money on energy costs.Solar panels and water heating panels are frequently confused for one another, despite the fact that they perform completely different functions.Solar water heating systems utilize solar collectors to gather heat from the sun and use it to heat the water they are heating.Collectors are often installed on the roof (either pitched or flat), where they get the most sunlight and are most efficient.Alternatively, they can be installed at ground level or even on a south-facing wall; nevertheless, the ideal placement will always be one in which the collectors are exposed to the most sunlight and heat.In addition to using an immersion heater or a boiler, you may use an electric water heater to raise the temperature of the water as necessary.

  • There are two types of solar thermal collectors, which mostly differ in terms of looks but have relatively comparable performance: flat plate collectors and curved plate collectors.
  1. Flat plate collectors
  2. Evacuated tubes
Flat plate collectors consist of hot water solar panels with a flat glazing that is mounted on a roof, while the evacuated tubes consist of several “vacuum tubes” fixed into a manifold mounted onto a roof. Apart from the collector, you need to route highly insulated pipes from the collectors to a hot water cylinder (either existent or a new one). Cold water from the bottom of this cylinder is then pumped through the collector, which heats the water and then sends it to the top of the hot water store. The video below explains how the solar water heating system works:

How Much Does Solar Water Heating Cost?

A residential system will typically cost between £3,000 and £5,000, depending on the size of the home and whether you need a new hot water cylinder or if you can utilize the old one that is already in place.Be aware that it is impossible to predict exact solar water heating panel pricing, and that it is always suggested to check with an installation before proceeding.If you opt to get solar hot water panels, you may save a significant amount of money on your monthly energy cost.Savings on a solar water heating system can reach up to £60 per year when converting from a gas heating system and £70 per year when switching from an electric immersion heating system, assuming a well insulated building, appropriate installation, and proper usage.However, the amount of money saved might vary depending on how much energy is used by the household.

Financial Support

Making use of solar water heating technology to heat your water is a cost-effective option, especially if you take advantage of the Renewable Heat Incentive.This is a government program designed to encourage householders to install low-carbon heating systems.The current tariff for solar thermal panels is 21.36 pence per kilowatt-hour (p/kWh).The earnings that a solar water heating owner can expect on an annual basis are shown in the table below.This quantity, on the other hand, may change between various solar water heating setups.

RHI Payments with Solar Thermal Panels

Home size RHI Earnings per Year RHI Earnings after 7 Years
1 bedroom £186 £1,302
2-3 bedrooms £310 £2,169
4+ bedrooms £475 £3,326

Request Quotes Right Away Fill out the form in less one minute. Despite the fact that solar water heating panels have significant upfront costs, they are a cost-effective residential heating option – and much more so if you take advantage of the Renewable Heat Incentive (RHI).

Benefits of Solar Water Heaters

  • There are several advantages to using solar-powered hot water in your house. We’ve given a few examples of them below. Heaters that use solar energy to generate hot water are available all year round.
  • It lowers your utility expenditures because it may provide up to a third of your hot water requirements
  • It helps you lower your carbon footprint by allowing you to save anywhere between 30 kg and 510 kg of carbon dioxide (CO2) each year.
  • Solar water heating, in contrast to other renewable energy systems, has minimal maintenance costs and great durability, as evidenced by their typical guarantee of five to 10 years.
  • Solar water heating makes use of the sun’s heat, therefore once the initial expenses of installing the system have been met, there are very little extra expenditures, other from the amount of energy required to run the pump that powers the system.
  • It may be used in conjunction with your existing heating system or hot water boiler, as well as with heat pumps and biomass.
  • The use of solar water heating qualifies for regular Renewable Heat Incentive payments for the production of energy from renewable resources.

Tips for Choosing a Solar Water Heater

  • Consider the following cleaning and maintenance suggestions when selecting your solar water heating system to ensure that your investment is as efficient as possible: That your roof has a south-facing orientation. Alternatively, make certain that you choose the most optimal position in your home for the solar collectors, which will ensure that they operate at their utmost effectiveness. If this is not possible, consider purchasing a thermodynamic panel that can be installed on any side of the house
  • that you have the appropriate area of south-facing roof available
  • and that you have the necessary area of south-facing roof available. It is estimated that you will require around one square meter of collector area per person who lives in the building in the case of flat plate collectors. In order to determine if you are making the most of your energy consumption, you need have an Energy Performance Survey performed on your home. This will determine whether or not you are maximizing your energy consumption. If you don’t, you’ll need to make the appropriate modifications before installing the solar water heater.

Solar Water Heater Maintenance

In comparison to the original expenditures of solar water heating systems, the maintenance costs are often minimal.As previously stated, solar heating systems are normally covered by a guarantee of five to 10 years.Once you get solar heating panels put on your roof, you will not have to worry about incurring any additional expenses.It is crucial to remember, however, that you must do monthly maintenance inspections to ensure that your solar hot water system is in perfect operating order.Every three to seven years, you should have it examined by a professional installer, which is a reasonable time period for the anti-freeze to be checked, topped up, or maybe even changed to avoid any potential leaks from occurring in the future.The cost of changing the anti-freeze fluid in a solar water heating panel is around £100 on average.

Find the Best Solar Water Heating Suppliers

Finding the most appropriate solar water heater for you and your household’s individual requirements may be a costly and time-consuming endeavor that takes much effort.Fortunately, at GreenMatch, we already have everything you need because we have a list of the top vendors that has been collected.It is possible to save time by just filling the contact form at the top of this page rather than wasting unnecessary time exploring vendors.Once you have completed the form, you will receive up to four quotations that are completely free of charge and without obligation.Request Quotes Right Away Fill out the form in less one minute.

How Much Does a Solar Water Heater Cost?

Solar water heating systems range in price from $1,600 to $5,200 on average, depending on the style, size, and installation of your design choice.Get bids from as many as three professionals!Enter your zip code below to get matched with top-rated professionals in your area.In an era when we are all striving to reduce our carbon footprint, the benefits of installing a solar water heater system are numerous.We’re talking about saving anywhere from 50 percent to 80 percent on your monthly electricity costs, as well as receiving federal and state tax deductions and even refunds from your local electric utility provider.Labor and parts are not included in the typical cost of installing a solar water heater, which makes it a more expensive option than a regular water heater.

How Much Does a Solar Water Heater Cost by Size?

  • The size of your system is determined in the same way that the size of a normal hot water heater is determined by how much warm water you consume on a daily basis. Do you have numerous teens living in your home that each take several showers a day? Is it only the two of you who are sharing a bathroom? The number of people and water sources in your home will determine the size of each component of your system. The primary components are as follows: solar collectors (also known as solar panels) for collecting the sun’s energy
  • There will be a tank to collect the hot water.
  • Plumbing is required to connect the system to your residence.
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The collecting style of the collector also has a significant impact on the ultimate price tag, but we’ll go into that in more detail later.

The Cost of Parts and Labor

  • In all, the basic components of your solar water heater system will cost between $1,000 and $4,000 to purchase. Add an additional $1,000 to $2,500 to cover the cost of additional pipes, backup heaters, or control switches for the system. The quantity of solar panels installed, which cost between $800 and $1,500 per panel, is also important. Finally, you’ll need to figure out how much labor will cost, which will account for a big portion of your budget. For the installation of a solar water heater, the hourly charge is on average $70 per hour. While most installations take a couple of days, the exact number of hours required depends on the following factors: the size of your system
  • the size of your home
  • the amount of sunshine and temperatures in your region
  • the location of your solar collectors (it takes longer to install them on a roof)
  • whether or not you need to heat a pool
  • and how many solar collectors you have.

A solar heating professional will likely perform some simple calculations to establish the size of your tank and the quantity of solar panels that will be required when you meet with them. In general, you may anticipate to pay between the following pricing ranges for each tank size.

50-Gallon Capacity Tank

Two people may comfortably enjoy a 50-gallon tank combined with a 40-square-foot collector for an average cost of $2,000 in labor and components, according to the manufacturer.

80-Gallon Capacity Tank

This size is excellent for a family of three or four people, connects to a collector of around 60 square feet, and costs approximately $3,000.

120-Gallon Capacity Tank

Large families of five or six require a larger tank as well as collecting panels covering up to 80 square feet in area. The cost of this system is around $4,000.

Are There Solar Water Heater Rebates Available?

Always remember to take the initial installation cost of a renewable energy system with a grain of salt when estimating future costs.Tax breaks from the federal and state governments might help you save a considerable amount of money on your installation costs.For example, according to EnergyStar, homeowners who installed a solar water heater system by the end of 2019 were eligible for a 30 percent tax credit on their investment.During the year 2020-2022, you will still receive a 26 percent rebate, with the percentage decreasing over time.You may then take advantage of state and utility company rebates to further reduce the cost of your home or business.For starters, homeowners in New York can deduct up to 25% of the cost of supplies and installation from their taxable income.

  • Utility providers all around the country also provide direct refunds to customers who upgrade their systems.

What Type of Solar Water Heater Can I Get on My Budget?

While solar energy can pay for itself over a period of several years, it is vital to budget for the initial outlay of money. It is possible to keep your initial expenditures down by choosing a smaller tank, a passive system, or working with a professional who can help you choose the best location for your solar panels. Let’s have a look at a couple other pricing ranges.

$1,000 to $2,000

If you live in a smaller home with less need for hot water, you may expect to pay in this pricing range. A 50-gallon tank fits within this range, particularly if you opt for a passive system or reside in a region where solar collectors are not required.

$2,000 to $3,000

The vast majority of solar water heater installations fall within or slightly over this range of temperatures. Consider an active system with a small or medium-sized tank as an example of this.


Once you’ve spent more than $3,000, you should consider upgrading to an 80 or 120-gallon tank. If your property necessitates the installation of larger solar panels, a direct active system, or complicated plumbing, the cost will rise accordingly.

How Much Does It Cost to Install a Solar Water Heater Yourself?

Getty Images Plus courtesy of Grandriver/iStock / Getty Images Plus A solar batch water system, also known as integrated collector storage (ICS), might potentially be considered a do-it-yourself project, depending on the components used.The combination of this extremely simple technology and a standard tank for less than $1,000 has proven successful for a few homes.Placing a batch collector in an insulated box in an area that receives lots of direct sunshine throughout the day is the first step in the procedure.Although some states let homeowners to construct a hot water system without a permission and professional license, not all of them do.As a passive system that does not include a backup heater, the DIY alternative is not recommended in any climate when temperatures are below freezing or there is continual cloud cover.To put it another way, we urge that you engage with a professional to guarantee that your solar heating system is safe, legal, and effective.

Solar Water Heater Cost Breakdown

  • The following charges should be anticipated from your local contractor if you are preparing your house for a water heating system replacement: Additional pipes, switches, and hardware, as well as labor, permits, and the removal of the old system are all included.

How Much Does Solar Water Heater Installation Cost by Type?

When comparing passive and active solar water heater systems, you’ll see that there is a significant difference between both. It’s not just that they have varied prices, but they also perform better in different parts of the country.

Passive Systems

In addition to the expense of labor, integrated collectors and what is known as a thermosyphon system cost between $1,000 and $3,000 before installation.Passive systems, which do not have a backup heater, rely on the heat from the sun and may involve complicated plumbing to separate the cold and hot water.Even while they are less expensive up front than the active choices, they are also more cumbersome and less trustworthy in colder climates.

Active Systems

Active systems are significantly more frequent in houses opting for a long-term, sustainable water heating technology, despite the fact that they have greater upfront expenditures.The two methods, known as direct and indirect, have an average cost of between $2,000 and $4,000 each.Direct systems are more effective in warm climates, but indirect systems, which incorporate the use of antifreeze and a heat exchanger, are most effective in cold climates.Additionally, these hookups are equipped with electric or gas backup generators, eliminating the risk of taking an ice-cold shower on a gloomy day.

What Factors Influence the Cost to Install a Solar Water Heater?

  • Professional water heater professionals will design each system to be specific to your home, including the amount of direct sunshine it receives and the amount of water you use on a daily basis. These expenses will be determined by the following factors: where you reside (tax incentives, cost of labor, and material pricing)
  • local weather (sunlight and freezing temperatures)
  • and how much time you spend working.
  • It is important to consider the weight-bearing capability of your roof, the placement of your solar panels, the kind and size of your system.

FAQs About Solar Water Heater Costs

Even while switching to solar energy may appear to be a demanding task at first glance, homeowners are becoming increasingly interested in the environmental and financial benefits of doing so. Here are some frequently asked questions concerning the procedure.

How do I choose the right solar system for my home?

Solar water heating systems are not a one-size-fits-all solution.There are several options available.To complete the project, you’ll most likely need to collaborate with a group of professionals, such as solar panel installers, plumbers, and water heater installers.A expert will assist you in determining whether a passive or active system is the most appropriate for your location’s weather, home layout, roof stability, and budget.

How long does a solar water heater last?

You should expect your solar water heater system to survive for at least 20 years, if not longer. Expect to incur recurring maintenance and inspection charges, just as you would with a normal water heater. provides information on how to preserve your solar panels from the elements as well as how to keep your pipes in good condition.

Why should I choose a solar water heater?

Aside from the fact that solar water heaters help you reduce your carbon footprint, they may also pay for themselves in as little as three to six years. Because of decreased utility bills and tax benefits, the system may be more environmentally friendly than a traditional heater.

Do solar water heaters work without the sun?

If you live in a foggy or chilly climate, your hot water installer may advise you to install an active heater with a backup electricity supply. Passive systems may also store water for overcast days, although they may run out of water after a lengthy period of time in the sun.

Solar Water Heating Costs

  • The cost of solar water heating is one of the most important considerations for homeowners when making this decision. Solar thermal technology can assist you in lowering your family energy costs, and you may even be eligible for the government’s Renewable Heat Incentive (RHI), which means that the installation will pay for itself over time if done correctly. There is, however, an upfront cost, and this can vary based on a number of criteria, including: the size of the collector/panel you have installed
  • the number of panels you have installed
  • and the number of collectors you have installed.
  • You can pick the sort of collector/panel that you like.
  • It is the expense of retrofitting your existing system to use solar water heating.
  • This depends on the hot water cylinder you select.

Cost of a Typical Solar Thermal System

A typical system will cost between £2500 and £5000, with scaffolding and plumbing work accounting for a significant chunk of the overall cost. Because of this, it is a good idea to have solar water heating installed during home maintenance work or to include it into the system during the construction of a new home.

How Much can you Save With Solar Water Heating?

The savings incurred as a result of installing a solar water heating system are rather modest. According to the Energy Saving Trust, the system will meet around one-third of your hot water requirements, resulting in a reduction in water heating expenses of between £65 and £125 per year (depending on the existing system).

Solar Thermal System Maintenance Costs

Maintenance charges are the only extra fees that must be paid in addition to the installation and system fee.Most systems are covered by a five- to ten-year guarantee, and it’s recommended that you have a professional come in and inspect your solar panels every three to five years to ensure that they’re in proper working order at all times.By comparing quotes from several solar thermal contractors, you may be able to save even more money on the cost of your solar thermal installation.Using Solar Guide’s simple web application, you can receive free quotations from rated and reviewed solar providers all around the United Kingdom.

Solar water heaters: Are they worth the cost?

For homeowners who want to minimize their utility cost, installing a solar water heater is a common technique of doing so.In addition to supplying large amounts of hot water, these systems lessen the requirement for grid electricity by utilizing renewable energy.In this blog, we’ll explain how solar hot water heaters operate, assess common manufacturers, provide advice on how to choose the best one for your needs, and most importantly, demonstrate how much money you can save by switching to solar hot water.

What is a solar water heater? 

Solar water heaters, in contrast to ordinary water heaters, do not require the usage of electricity to heat the water.Instead, these high-efficiency appliances gather energy from the sun through the use of specialised solar collectors installed on your roof.It is then possible to use the solar energy that has been captured to heat the water in your house.Solar water heaters have been quite popular in the past since they allow you to reduce your power cost while also heating your water using environmentally friendly energy sources.The solar collectors are solely responsible for heating your water; they do not deliver any additional solar energy to your residence.People have been increasingly turning to electric heat pump water heaters, which are often used in conjunction with household solar panel systems, in recent years.

  • The electricity used by electric heat pumps to heat your water comes from the grid; but, when combined with a home solar system, they are still able to run on solar electricity.
  • If you are unable to build a whole home solar system, or if you live in an off-grid home, a standalone solar water heater may be a viable choice for your household.

How do solar water heaters work? 

Solar water heating systems are capable of producing enough hot water to meet the majority of your household’s daily hot water requirements. In terms of home and commercial applications, there are two primary types of solar water heaters available:

  1. Active solar water heaters
  2. Passive solar water heaters

Each of these functions differently and is comprised of separate pieces of equipment.

Active solar water heaters 

  • In active solar water heaters, a pump is used to move hot water from the solar collectors or absorbers to the rest of the house. These are often seen in colder locations, as the water is stored in a tank that can be kept indoors to avoid freezing during the winter. There are two basic types of active solar water heaters: passive solar water heaters and hybrid solar water heaters. Active direct systems, in which the water is heated directly in collectors before being transported to your faucets and showerheads, are becoming increasingly popular. The solar collectors are usually made of metal or glass tubes
  • active indirect systems, in which a heat transfer fluid, such as propylene glycol, is heated within the solar collectors and then transfers the heat to the water supply through a heat exchanger in a closed-loop system
  • passive indirect systems, in which a heat transfer fluid, such as water, is heated within the solar collectors and then transfers the heat to the water supply through a heat exchanger in a closed-loop system A certain amount of heat loss happens as the transfer fluid cycles through the system.

Passive solar water heaters 

  • Passive solar water heaters do not require the use of circulating pumps to transfer the hot water around the tank. The use of convection as the water circulation mechanism, in which hotter water rises to the surface and colder water descends, allows them to circulate water more efficiently. Passive solar water systems are often less expensive than active solar water systems since they do not necessitate the purchase of additional equipment to pump the water. Passive solar water heaters are often classified into two categories: Integral collector solar water heaters are big, black water storage tanks that are housed in an isolated box with a transparent top that allows sunlight to pass through them. When you need hot water, the sunshine heats the water directly in the black tanks, which then flows into your plumbing system.
  • Thermal collectors made of metal flat plate collectors are used to heat small batches of water on your roof using passive thermosyphon systems. When you turn on your hot water valves, hot water from the top of the batch collector flows down from your roof to your faucets, saving you money on energy costs. This type of container is typically built to hold 40 gallons of water.
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The use of a tankless heater as a backup energy source is common in passive systems, and these heaters can be either gas or electric.

What are the most popular brands of solar water heaters? 

  • As solar technology continues to find new uses in our everyday lives, an increasing number of solar heater manufacturers are emerging. These are some of the most popular models currently available on the market. In addition to manufacturing gear that runs on biodiesel and other alternative fuels, Duda Diesel also provides services. They provide a variety of solar water heaters for both home and business use.
  • Sunbank Solar manufactures solar water heating system components such as collectors, pumps, plates, and other components.
  • Home and business owners may benefit from a variety of solar energy solutions provided by SunEarth, including solar water heating systems and components.
  • Apricus and Rheem are two of the most common brands of solar water heaters
  • however, there are others.

The cost of a solar hot water heater is determined by the type of system and the size of system you choose. Smaller passive solar water heater systems may be purchased for as little as $3,000, while a bigger active system can cost as much as $10,000 or more.

How to select the right solar water heater 

  • Depending on the environment, some types of solar water heating systems perform better than others. Direct systems are most effective in climates where temperatures rarely fall below zero degrees Fahrenheit. Cold conditions make indirect active systems more resistant to freezing damage than direct active systems.
  • Do you want your solar heating system to serve a dual purpose? Make an investment in a system that circulates indirectly. During the intervals between supplying your house with warm water and heating your swimming pool or spa, the heating fluid may be diverted to do so.
  • Families who use more hot water during daylight hours benefit from passive systems that are integrated into the home. Family members will not have to worry about running out of hot water for morning showers because of the ability to produce many tiny batches of warmed water.
  • Do you have more roof space than you do ground space? A thermosyphon solar water heater is designed to be installed on your roof, allowing you to have more room in your living area.
  • Integral collector storage systems can weigh more than 400 pounds, so you must ensure that your roof is capable of supporting the weight of a large water storage tank.

Furthermore, you must take into account the amount of sunshine that your home receives, how much hot water you use on a daily basis, and your financial situation.Search for ratings from the Solar Rating and Certification Corporation while looking for solar water heater choices (SRCC).Ratings from the SRCC make it simple to evaluate different brands and models by relying on professional third-party data.Because every home is different, you should obtain professional advice to ensure that you select the most appropriate system for your residence.Speak with an installer in your region to learn more about the equipment that has been recommended for your project.

How much money can you save with a solar water heater? 

  • Solar water heaters demand a significant initial cost – in some circumstances, upwards of $5,000 – to be installed. However, following installation, a solar hot water system will gradually begin to pay for itself by reducing the amount of money you spend on utility bills. As a matter of fact, solar hot water heaters may often reduce your water heating bills by 50 percent to 80 percent! Your solar water heater will continue to provide almost free hot water for the rest of its useful life once you have reached the end of your solar payback period. In addition, because solar water heaters do not have any moving components, they offer low maintenance requirements and expenses. Always keep in mind that, depending on how much hot water your household consumes, you may be required to employ a backup grid-connected hot water system. The following information will be required in order to determine your potential savings: What amount of hot water your household need on a daily basis
  • Fuel costs for your backup heater are calculated as follows: For additional information on the energy expenses associated with backup heaters, contact your local utility company.
  • The SRRC, also known as the solar energy factor rating, of the equipment you want to use. These figures offer you an indication of how efficiently your appliance will utilise solar energy gathered
  • how much of your hot water consumption occurs during daylight hours
  • and how much of your electricity consumption occurs during daylight hours. Using more hot water when there is less sunlight available implies relying more on expensive grid electricity.
  • Your solar water heating system’s expected lifespan is given below. The longer the life expectancy of your heating system components, the more money you’ll save.

You can calculate the annual running cost of your solar water heater using the information you have gathered. When you compare this to your typical monthly electricity expenditures, you can see how much energy you could save by making the transition to solar.

What rebates and incentives are available for solar water heaters? 

The Investment Tax Credit, often known as the federal solar tax credit, provides a tax credit equivalent to 26 percent of the expenditures associated with the installation of a solar water heater in a residential or commercial building.For example, let us assume that your solar water heater costs $5,000.You’ll receive a tax credit of $1,300, which will reduce the total cost of your system to just $3,700, saving you money.It is also possible that your local utility provider will provide special discounts or rebates for the installation of eligible equipment.Customers who install a solar water heater, for example, might qualify for a $750 reimbursement from Hawaiian Electric Company.Find a solar water heater installer in your region to help you save money on your utility bills while maintaining your comfort.

Should I get a solar water heater or a home solar panel system? 

Until a few years ago, solar water heaters were a popular choice for many people.Instead, the current tendency is for homeowners to simply install a solar panel system on their property.Why?It is because the cost of solar panels has decreased significantly in recent years.When it comes to cost-effectiveness, pairing a domestic solar panel system with an electric water heater is the best choice.Not only will the solar panel system cover your hot water expenditures, but it will also cover the energy costs of your whole home.

  • And even the most high-quality solar water heaters are inefficient compared to the energy efficiency of electric water heaters.
  • Solar water heaters, on the other hand, can be beneficial in some situations.
  • Compared to solar panels, they are more effective at their specialized job, which is water heating.
  • Only the water must be heated by the sunshine; it does not need to be converted into energy, which would then power a system to heat the water.
  • The installation of a solar water heater takes up far less roof space than a full solar system.
  • Solar hot water heaters may be the ideal option for you if you have limited space and want to maximize the benefits of solar energy.
  1. Local solar providers will be able to install both solar panel systems and solar water heaters as a result of this initiative.
  2. They’ll also be able to assess which option is ideal for you – whether to obtain just one or both of the options.
  3. In order to obtain further information, including an estimate of how much a solar energy system for your house will cost, speak with a trusted local solar energy contractor in your region.

Key takeaways

  • Solar water heaters, which use solar energy to heat water with the assistance of solar collectors on your roof, are becoming increasingly popular.
  • Water heaters that are active in the solar energy system utilize a pump to circulate hot water from the solar collectors to your residence.
  • Instead of using pumps to circulate the water, passive solar water heaters use convection to do this.
  • It is possible to spend up to $5,000 on a solar water heater that can reduce your hot water heating expenditures by half.
  • Renewable energy systems such as solar hot water heaters are eligible for the federal solar tax credit. Additional incentives from local governments and utility providers may be available.

Advantages and Disadvantages of Solar Water Heater

Solar water heaters, also known as household solar hot water systems, have lately attracted a great deal of attention due to their efficiency and low cost.The use of solar water heaters is not only cost-effective, but it is also environmentally beneficial when it comes to heating water for home use.Because they operate on the heat generated by the sun, if you live in an area that receives a lot of sunshine, a solar water heater will undoubtedly assist you in lowering your power bill prices significantly.Solar hot water systems are typically comprised of solar collectors (often photovoltaic or thermal cells) and water storage tanks.Passive and active heating systems are the two types of heating systems that are available.While an active system involves controls and circulating pumps, a passive system does not require any extra moving components; it is simply a dark colored tank filled with water that heats the water by convection.

  • Active systems are more expensive than passive systems.
  • A solar water heater makes use of a water storage tank that has been properly insulated.
  • Solar hot water systems are connected to storage tanks through extra input and output ports, which are located on the collector itself.


  • Solar heaters aid in the utilization of a free natural resource such as sunlight and, as a result, in the reduction of power expenses.
  • It requires only the most basic fittings and a one-time expenditure, after which it is completely free for up to 20 years.
  • The cost of solar energy equipment is reducing day by day, and new and more efficient equipment is becoming accessible on the market.
  • It is a renewable and environmentally friendly energy source.
  • These systems are simple to install and need little maintenance
  • they are also cost effective.
  • Because these systems have a lengthy life span, they provide excellent value for money.
  • A solar water heater may operate without interruption for up to 20 years.


  • In order to install the solar heater, additional roof top space is necessary.
  • The effectiveness of solar heaters is dependent on the amount and accessibility of direct sunlight.
  • It only warms during the day, but if the storage tank is properly insulated, hot water may be kept and utilized even at night
  • It will be ineffective during the rainy season or on cloudy days.

Save Money and More with ENERGY STAR Qualified Solar Water Heaters

An ENERGY STAR rated solar water heating system may reduce your yearly hot water bills by half, and it is often designed to be used in conjunction with an electric or gas backup water heater to achieve the greatest efficiency.Voting with your pocketbook for renewable energy solutions is an excellent way to demonstrate your environmental leadership.Consider installing an ENERGY STAR rated solar water heater in your house and reap the following benefits: Savings of a significant amount.It is possible to reduce your water heating expense in half by heating or preheating your water with sunlight.This implies that if you combine solar with a backup gas storage water heater instead of utilizing a gas water heater alone, you may save $140 each year or $2,900 over the lifespan of the water heater.Every year you use an electric tank water heater as a back-up, you’ll save around $280 in power costs, which adds up to $5,200 over the lifespan of the tank water heater.

  • 1 It is possible to save even more money for large households with higher hot water demands.
  • Showering in the evening, when the water is hotter, can also help you save money on your utility bills.
  • A purchase that helps to safeguard the natural environment.
  • Solar water heaters that are certified by the ENERGY STAR can reduce your carbon dioxide emissions by half.
  • A certified solar water heater will save 4,000 pounds of carbon dioxide from entering the environment each year if it is installed in your home.
  • This is the equivalent of not using your automobile for four months out of every twelve months!
  1. A long life expectancy.
  2. Standard gas or electric storage water heaters have a life expectancy of around 10 years, but approved solar water heating systems have an average life expectancy of 20 years.

Do solar water heaters work in winter in the Northeast?

In the winter, solar water heaters do not produce as much hot water as they do in the summer.Installed solar water heating systems in the Northeast will be protected from freezing, and snow will melt off of your solar water heating collector long before it slips off your roof.One of the most often asked (and very significant) questions concerning any solar-related technology in the Northeast is as follows: How well will it perform in the middle of winter, when the temperature outside is below freezing and the sunshine is scarce?Keep in mind that solar water heaters are not intended to be a total replacement for your existing water heater.A basic solar water heater will be able to heat 60-80% of the water you consume over the course of a year, depending on how much you use.During the months of April through September, virtually all of your hot water will be heated by solar energy.

  • Due to short days and insufficient sunlight in December, the proportion of your hot water that is heated by the sun might decrease to as low as 10-20 percent during the winter months.
  • As a result, virtually every solar water heater built in the United States will be connected to a backup conventional water heater to ensure that your hot water demands are satisfied even during the coldest months of winter.
  • Any active solar water heating system (see here for an explanation of the many types of water heaters) should be constructed such that it does not freeze during the winter months.
  • In cold climates, there are a couple of options for preventing freezing: the first is to have the solar water heater circulate a non-toxic antifreeze mixture through the collector and heat the water in your tank indirectly (through a heat exchanger), rather than circulating water, which could freeze and damage the collector; the second is to install a heat exchanger between the collector and the tank.
  • In the other case, a drainback system is used, which circulates either water or an antifreeze combination, and uses a temperature sensor in conjunction with a pump to drain the fluid out of the system when the temperature drops too low or when the sun stops warming the water.
  • Any solar water heater system in New England that is installed by a qualified technician will be protected against freezing temperatures.
  1. Despite the lengthy winters, Massachusetts is among the top states in the United States in terms of solar water heater installations, just trailing the typical suspects in sunny California and Arizona (California, Hawaii, Florida, and Arizona).
See also:  What Water Filter?

Can a Solar Water Heater Work at Night? – Plumbing Today

In light of the fact that solar water heaters rely on sunlight to heat water, you might be wondering if they can provide you with hot water at night. In light of the fact that solar water heaters rely on sunlight to heat water, you might be wondering if they can provide you with hot water at night. Yes, they are capable of doing so! Here’s how to do it.

Solar water heater usually systems come with a backup unit

Most often, a backup gas or electric water heater is used in conjunction with the solar water heater system. The backup water heater serves two purposes:

  1. Cooking water on days when there is insufficient (or no) sunshine is a must.
  2. If the water isn’t hot enough, increase the heat to compensate

The backup unit comes in handy if the water isn’t hot enough at night when you need it to shower or bathe. No matter how cold or hot it is outside, you’ll always have hot water in your home.

“What’s the point of a solar water heater if I need a backup unit?”

The gas or electric backup unit, on the other hand, should scarcely be used at all.The heated water is held in a tank that has been properly insulated, which prevents the water from cooling down too much before it can be utilized.The backup unit just provides a little amount of extra heat in order to keep the water at a pleasant temperature.Overall, installing a solar water heating system can reduce your water heating expense by 70 percent to 90 percent.An estimated $200-$300 per year in decreased water heating expenses may be saved by employing a solar water heater with a backup element, according to the Florida Solar Energy Center.

“Is a solar water heater worth it in the long run in Florida?”

In a nutshell, the answer is yes.After conducting research for a recent post on the costs and savings associated with solar water heaters, we discovered that, by taking advantage of federal and local incentives, a solar water heater easily pays for itself over time—and then some.A solar water heater has a lifespan of around 20 years.As a result, during the course of the solar water heater’s lifespan, a family of four might save $4,000 to $6,000 in energy costs.So let’s run the numbers: Purchase and installation of a solar water heater cost $7000.(average cost, rounded up) -$1000 a month (FPL rebate) -1800 dollars (30 percent federal tax credit) -$6,000.00 (high end of energy savings) -1800 dollars (amount of money saved overall) Additionally, because a gas, electric, or natural gas water heater has a lifespan of around 10 years and a solar water heater has a lifespan of approximately 20 years, a solar water heater may be able to save you the money it would take to purchase a brand new gas or electric water heater.

  • Of course, all of these are merely educated guesses.
  • The actual expenses and savings may vary depending on the demands of your home and family.
  • Want to find out how much money you may save by using a solar water heater?
  • For assistance, contact Plumbing Today.
  • In Sarasota, Florida and the neighboring cities, such as Bradenton, Tampa, and Port Charlotte, Plumbing Today is recognized for providing award-winning air conditioning servicing.
  • If you have any questions, feel free to contact one of our specialists for assistance.

Solar Water Heating in the Sacramento Region

Aztec makes use of a tile clip that does not penetrate the tile surface it is holding. A tile is simply removed in order to place a tile clip that rests on the top lip of a tile on the floor. After that, we replace the tile that was removed. Afterwards, the tile clip is employed to affix our panels to the wall.

Can I install the panels on my patio trellis?

It is feasible to place the panels on top of your existing patio trellis, which is described above. Because of the design of the Heliocol panels, we are able to put the panels level on the trellis rather than having to tilt the panels up into the air as is necessary with other panels.

How long does the install take?

The installation of a system will typically take one day. Depending on the difficulty of the work, it might take several days in some instances.

Why is it smart to finance solar?

Smart loans, which cut your payments over a longer period of time, are becoming increasingly popular among banks. No money down and monthly payments that are lower than what you are presently paying to the utility provider are available for the majority of system financing options.

What about roof damage?

Aztec Solar has been installing solar panels on a variety of roof types since 1980. We have extensive expertise with various sorts of roofs. We stand behind our handiwork and have insurance, licenses, and bonds in place to secure the homeowner’s investment.

Solar Water Heater

A solar water heater does exactly what it says on the tin: it uses the sun’s energy to heat water, allowing you to have more efficient access to hot water for your house or company.There are two distinct variants of this concept, the first of which is the Solar Water Heater, which uses evacuated tubes, and the second of which is the Solar Water Heater, which uses a flat plate collector.What is the procedure?Each and every solar collector receives solar irradiation (including sunlight, ultraviolet light, and infrared radiation) and transforms it to heat.Through a variety of heat transfer methods, the heat from the tank’s interior to the water in the tank is transmitted (although the principles remain the same).Solar collectors are generally classified into two categories.

  • Flat plate collectors and glass evacuated tubes (EVTs) are two types of collectors.
  • Both of these items are hail resistant.
  • It is necessary to use vegetable antifreeze (glycol) when installing flat plate collectors in frost-prone locations since they are susceptible to freezing.
  • This will need to be changed or topped up on a regular basis, and it will be an ongoing maintenance expense for several years.
  • Water heated by the sun is circulated via a system of pipes, allowing you to enjoy a steaming hot shower or bath without the use of an electric water heater.
  1. Retrofits are solar systems that are attached to your existing electrical geyser, allowing you to save the expense of a new tank altogether.
  2. The usage of complete solar water heater systems, which comprise both a tank and a solar collector, is common in new construction, additions, and as pre-feeds to an existing tank.

Types of Solar Water Heater.

Getting a Solar Water Heater for your Home.

A solar water heater system that works in conjunction with your geyser to achieve energy savings by using the heat from the sun to warm water through a series of pipes and then feed that water back into the domestic systems to save energy by being able to switch the geyser off and allow the water to be heated through this system is shown in the diagram below: In addition to saving you money on power, shortening the running period of your geyser will provide you with PIPING HOT WATER – and especially in South Africa, where solar energy is abundant, this sort of system makes good (Rands) and pence to have installed.The graphic below illustrates how the solar water heater works in conjunction with your present geyser to enhance energy efficiency in your house while also reducing the amount of energy used by your geyser on a daily basis.

Solar Water Heater – How much could it save you?

It will be determined by the efficiency of the system that is selected.This is mostly influenced by the power output of the solar collector, with larger solar collectors being preferable as a general rule.It is possible to replace 95 percent or more of the power generally used in water heating with a properly designed solar system.Electric geysers take roughly 5 kWh units of power to heat a 100-litre tank, 7,5 kWh units of electricity to heat a 150-litre tank, 10kWh units of electricity for a 200-litre tank, and so on.When a high-performing system is implemented, it may pay for itself in two to three years and provide investment returns that are unmatched by any other type of investment.The expected lifespan is 15-25 years or more, and the majority of systems should require little maintenance.

  • The amount of money you save will vary depending on how much hot water you use, but the general consensus is that this is a long-term investment that will save you (on an average household of four people) between R300 and R600 per month, and that this figure may rise in the future as electricity prices rise over the course of the year.
  • With the current price of energy, a solar water heater may pay for itself in as little as two and a half years, if not sooner.
  • An energy-efficient solar water heater is an important component of any energy-saving strategy for your house or company.
  • A Solar Water Heater should thus be included in your 2019 energy cost reduction strategy if saving money on energy is one of your objectives.

Get the best advice FIRST- BEFORE YOU BUY!

  • Before you purchase a solar water heater, spend the time necessary to obtain the best advise on which system will provide the results you need!
  • Ubersolar is Saving Energy’s recommended specialist, and they can provide you with a professional assessment of what you would need.
  • Simply fill out the form below, and James and his staff will get in touch with you to discuss your individual requirements and then recommend the best course of action.
  • You may also contact them by phone at 061 536 0184 or by visiting their website.
  • The Solar Water Heater is another another gear in the wheel of energy conservation.

Primary Advantages & Disadvantages of Solar Water Heaters

  • The heating of water in the home consumes a significant amount of energy.
  • According to the United States Department of Energy, heating water accounts for around 18 percent of total household energy use.
  • By converting to a home solar water heating system, it is feasible to lower your energy consumption and the expenditures connected with it.
  • Such a system does not rely on fossil fuels and instead uses solar energy to heat water held in storage tanks.
  • Because of this, solar heating systems are extremely cost-effective, which is a significant benefit over other heating methods.
  1. Because solar energy is free, there is no need for a fee from electrical utilities to be collected.

Advantages of Solar Water Heaters

The benefits of solar electric systems extend beyond the cost reductions and increased availability of electricity, which are both accomplished with solar electric systems. Some of the advantages of solar water heating items for the house are listed below, and they may persuade you to make the switch.


  • Active systems are available in two configurations. Direct circulation systems circulate domestic water via collectors before delivering it to the various parts of the house that use it. They are equipped with automated controllers that detect when there is enough sunshine. The systems, on the other hand, are rendered ineffectual in temperatures below freezing. By pumping water through a heat-transfer fluid that is not susceptible to freezing, indirect circulation systems heat water. Following that, it passes via collectors and a heat exchanger. They are frequently more expensive than direct circulation systems, despite the fact that they are capable of operating in freezing temperatures and in a variety of heating applications. Passive systems: There are two different types accessible here as well. In a passive solar system with an integrating collector and storage tank, the storage tank is connected to the solar collecting unit by pipes that pump cold water into the collector. It is appropriate for a residence that requires hot water during the day and evening hours, but it does not perform as well in colder weather. A thermosyphon system operates on the idea of warm water rising and cold water sinking. It is a type of water pump. It is a dependable structure for warm water to ascend via the collector and into the storage tank from the storage tank. The system’s disadvantages include the weight of the storage tank, which might make it difficult for contractors to work on the roof, as well as the fact that it is a more expensive choice. Other advantages are as follows: Making the right choice in terms of size is critical since households must have enough storage space for 90 percent or more of their hot water requirements. The amount of storage space available is also a concern. The size of the storage tank is appropriate for three or four people
  • an 80-gallon tank is appropriate for four or five people
  • and a bigger tank is appropriate for up to six people.
  • Solar thermal panels take up less area than photovoltaic panels, which means they require less room overall. When it comes to heating water, fewer solar panels are required than when generating enough electricity to power a home.
  • High efficiency: Approximately 80 percent of the sun’s radiation is converted into the thermal energy necessary to heat water at home.
  • Savings on expenses: The price of two or three panels is less expensive than the price of a bigger household installation. You will also save money on the cost of fuel for providing gas heating systems.
  • Low maintenance requirements: Solar water heaters require very little maintenance when they are installed and can last for up to 20 years.
  • Reduce your carbon footprint: A home may be made more environmentally friendly, and tax breaks may be offered for those who use renewable energy sources.
  • Solar water heaters have a number of disadvantages. One negative is that maintenance i

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