# How Long Does It Take For A 50-Gallon Gas Water Heater To Heat Up

## How Long Will it Take my 50 Gallon Water Heater to Heat Up?

Getting hot water out of a huge tank-based heater may be tedious and time-consuming, and it can take a long time. For those who are enduring harsh weather conditions, heating the full 50-gallon storage container may take an extended period of time. However, the majority of these are dependent on a variety of different conditions. In a water heater, one of the most essential components is the heating element, which has a significant impact on the amount of time it takes to heat 50 gallons of water.

A variety of additional elements have a part in determining how long it will take to complete.

However, if you want to learn more, this tutorial will be of assistance.

## Draw Efficiency

The drawing efficiency refers to the volume of water that must be heated in order to increase the temperature of the entire tank to a certain level of efficiency. The heater will not be able to heat the whole 50-gallon container of cold water. In addition, it includes a particular draw efficiency calculation that will function in conjunction with one another to increase the temperature. If you take any quality heater into consideration, its draw efficiency must be at least 70%. It is critical because the cold water enters the system at the same time as the hot water exits the heater.

## First Hour Rating

The first-hour rating is a computation that determines the volume of water that will flow out of the heater during a single hour of operation. It will be necessary to set the heater to a preset temperature range, which is typically 135 degrees Fahrenheit, in order to determine this amount. The first-hour rating is based on the amount of water that flows out of the unit in the first hour. Any heater with a respectable first-hour rating can be regarded a top purchase in this category. Although the test is carried out using at least 3 litres of water, it continues to run until the temperature lowers by 25 degrees Celsius.

## Recovery Rating

Another key component that impacts the effectiveness of a product is the recovery rating it receives from the manufacturer. The recovery rating is often used to refer to the amount of electricity required by the unit to heat the water contained inside it. A significant temperature disparity exists between the unit’s preset temperature and the actual temperature that the water within the tank is receiving. This is the reason why it is preferable to have a high recovery rate that will decrease the amount of time required.

You should choose gas-based heaters rather than electric-based heaters if you want to achieve the greatest outcomes possible. In general, they can warm in half the time it takes an electric heater to do so.

## Electric Hot Water Recovery

Any water heater with a capacity of 50 gallons will typically take around 5500 watts to heat the entire unit. Temperatures should be set at 120 degrees Fahrenheit, and it should take around 1 hour and 20 minutes to finish the full heating process. But keep in mind that this is only valid when the water temperature entering the device is 60 degrees. When the temperature is 70 degrees, it should take around 1 hour to finish the heating process. When the intake temperature is about 40 degrees, on the other hand, the identical device will take around 1 hour 50 minutes to fill up a full 50-gallon tank, according to the manufacturer.

## Gas Hot Water Heater Recovery

It is significantly more efficient to use a natural gas water heater than it is to use an electric water heater. This is mostly due to the fact that it has a better recovery grade. When compared to electric-based models, the recovery rate of gas-based heaters is less than half that of electric-based heaters, which is a significant difference. Fairness dictates that when the water temperature is around 40 degrees Fahrenheit, it should take around 55 minutes to heat a complete 50 gallon container.

When the temperature is greater, though, it should only take around 30 minutes to complete.

1. How long does a water heater last on average? In a task-based approach, the manufacturers are often quite explicit about the importance of keeping the internal components durable. The only locations where you need be concerned are the tank and the pipelines. It is estimated that if you have hard water in your area and it is producing problems, the complete unit will last around 5 years if it is not maintained. However, if you do, it should survive between 13 and 20 years, or possibly longer, depending on the quality of the water and how well it is maintained.

1. Is it possible for a water heater to explode?
2. That is why, while shopping for a heater, you should take the safety valves into consideration.
3. Having a temperature and pressure release valve installed may assist you in avoiding such scenarios.
4. 3.
5. If your heater begins to leak, you have no choice except to let your home to burn down.
6. It must be equipped with a separate shut-off valve that may be used to cut off the heater’s activities.

If you are not a professional, you should get assistance; otherwise, turn the heater down to a safe setting and empty away the water inside before allowing it to cool down completely. More information may be found in the following article.

## Conclusion

If you have a water heater tank that holds 50 gallons of water, it will take some time before it can begin supplying hot water. You may calculate the amount of time it takes to heat the full unit by combining these parameters together. When living in harsh weather conditions, it is necessary to take a close look at these variables and make an informed decision on which one to purchase. Please let us know how long it took for your 50-gallon water heater to get to temperature.

## How Long Does It Take for a Water Heater to Heat Up?

You have arrived to the following page: How Long Does It Take for a Water Heater to Heat Up? Do you have a question about how long it takes for a water heater to heat up? No need to look any farther – our comprehensive guide provides answers to this and many other questions. Continue reading to find out all you need to know.

• Approximately how long does it take for a gas water heater to come to temperature. Is it possible to tell how long it takes an electric water heater to heat up
• What factors influence heating time

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## How Long Does It Take for a Water Heater to Heat Up?

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### How Long Does It Take a Gas Water Heater to Heat Up?

A gas water heater is more energy efficient and can heat water more quickly than an electric water heater. With strong burners located at the bottom of the tank, they use natural gas as a fuel to heat the water stored in the tank. The temperature at which a gas water heater is set, as well as the temperature of the cold water that it must heat, determine how quickly it can heat water. Here are several averages to consider:

• Gas water heaters with capacities of 40 and 50 gallons take 30-45 minutes, while 80-gallon gas water heaters take 60-70 minutes to heat.

The average gas water heater holds around 40 gallons of water and takes approximately 30 to 40 minutes to heat water from 40 degrees to 120 degrees. It will take around 40 to 50 minutes to heat up a 50-gallon unit. It takes around 60 to 70 minutes for a big 80-gallon gas water heater to reach operating temperature. Of course, this is only a rough estimate, and actual costs may vary depending on the age and model of the vehicle.

### How Long Does It Take an Electric Water Heater to Heat Up?

Electric water heaters require more time to heat up than gas water heaters. To heat the water, these machines make use of electrical heating components that are submerged within the tank. They require almost double the time to heat up. The amount of time it takes is affected by the wattage of the heating element and the temperature that has been set on the water heater. Here are some averages, on the other hand:

• 40-gallon electric water heaters take 60-80 minutes to heat water
• 50-gallon electric water heaters take 145-150 minutes to heat water
• 80-gallon electric water heaters take 120-130 minutes to heat water.

If you have a 40-gallon electric water heater that uses 5500 watts and is set to 120 degrees, it will take around an hour to an hour and 20 minutes to heat the water.

It will take around an hour and 45 minutes to an hour and 50 minutes to heat a 50-gallon electric unit. It will take around 2 hours for a big, 80-gallon electric water heater to reach the desired temperature.

## 6 Factors That Affect Water Heating Time

We’ll look at the elements that influence how long it takes to heat water heaters now that you’ve seen that they may take anything from half an hour to more than 2 hours to heat up.

### First-Hour Delivery Rate

A rating for first-hour delivery (FHD) is given to all water heaters. When the water heater is fully charged, the FHD tells how many gallons of hot water it can deliver in an hour. The flow rates for FHD are provided in gallons per hour (GPH). A high FHD rate indicates that you will receive more hot water more quickly than you would from a unit with a lower FHD rate, which means you will save time and money. A FHD rate of around 60 to 80 GPH is appropriate for a 50-gallon container.

### Recovery Rate

The recovery rate of a water heater refers to how many gallons of hot water the device can deliver each hour while it is being utilized. It informs you how quickly the water heater can recover (also known as refill) with cold water and heat it back up to normal temperature. Due to the fact that it takes less time to heat up hot water in a unit with a high recovery rate, it will supply hot water faster. A high recovery rate water heater, on the other hand, will be able to swiftly heat cold water that enters the system, regardless of how much hot water you’re consuming at once.

### Power Source

The power source of a water heater (gas or electricity) has a significant impact on the amount of time it takes to heat water. Electric water heaters are notorious for taking a long time to heat the water. This is due to the fact that using electrical heating components rather than gas burners is less efficient. A typical 50-gallon gas water heater may have a flow rate of 80 to 90 GPH, but an average 50-gallon electric water heater may have a flow rate of 58 to 66 GPH, depending on the model.

### Water Heater Type

Those with tanks that store and heat water are referred to as storage water heaters. Tankless water heaters do not have storage tanks and heat the water as soon as it is drawn from the faucet, saving energy. These two types of water heaters have a significant variation in the amount of time required to heat water. It might take anything from 30 minutes to an hour and a half for a storage water heater to reach operating temperature. A tankless water heater, on the other hand, makes hot water accessible almost immediately.

Continue reading: The Best Tankless Water Heaters

### Water Heater Size

The size of a storage water heater, measured in gallon capacity, has a significant impact on how rapidly it can heat water. Storage water heaters may typically hold anywhere from 30 to 80 gallons of water, depending on the model. Smaller tanks heat water more quickly (and run out of hot water more quickly) than larger tanks because there are fewer gallons of water to heat. This is analogous to heating water in a tiny 2-qt. saucepan on the stove instead of a large 12-qt. stock pot on the stove.

Larger tanks, on the other hand, do not take as long to heat up as you might expect.

Because large capacity gas water heaters feature a larger gas burner, they heat water faster than smaller capacity gas water heaters.

Even so, if you have a 30-gallon water heater, you won’t have to wait nearly as long for it to heat up as you would if you had a 50- or 80-gallon one. Continue reading: The Best Small Water Heaters

### Original Water Temperature

The temperature of the starting water has a significant impact on the amount of time it takes for a unit to heat it up. If the water temperature at the input is low, the water heater will have to work harder to increase the water temperature to the setting you’ve selected. Temperatures in cooler areas are typically about 40 degrees Fahrenheit for the water entering the system. In warmer areas, the temperature is around 50 degrees. It takes some time for the water heater to heat the water from 40-50 degrees to 140 degrees.

To assist you in locating local plumbers in your region, we have teamed with Networx.

Find a Plumber in your area.

## So, How Long Does It Take for a Water Heater to Heat Up?

In most cases, if you have a gas water heater set to 120 degrees and the incoming water is about 50 degrees, you should not have to wait more than 30 to 50 minutes for hot water (in 40 and 50-gallon units). A 5500-watt electric water heater set to 120 degrees will provide hot water after about 50 minutes if the incoming water temperature is roughly 50 degrees. This will require a little longer wait time. It will take around one hour to one hour and forty-five minutes (in 40 and 50-gallon units).

If your water heater takes longer than around 2 hours to heat up, you should contact a professional to inspect it.

###### You Might Also like:
• What size water heater do I require
• What is the average cost of a water heater
• And how long does a water heater last

## How Long Does a Heater Take to Heat 50-Gallon Water

In order to determine what size water heater I require, as well as how much a water heater costs on average, and how long a water heater lasts, please see the following sections: A hot water heater’s first-hour rating is calculated by how many gallons of water it draws from the tank during a single hour of testing set by the United States Department of Energy for the unit. This is accomplished through the use of a device that has been adjusted at a water temperature of 135 degrees Fahrenheit.

The quantity of power received by the unit determines the device’s power recovery rating.

When it comes to getting a 50-gallon hot water heater to heat up, the temperature of the water entering the unit, the temperature set to heat the water, and the power source are the most important considerations.

### Electric Hot Water Heater Recovery

A 50-gallon hotelectric water heater with a 5,500-watt heating element set at 120 degrees needs approximately 1 hour and 20 minutes to heat the water entering the heater, which is at 60 degrees when the heater is turned on. In order to make a little adjustment to the parameters, we will retain the temperature of the water entering this identical tank at 40 degrees. It will take around 1 hour and 47 minutes to heat the water to 120 degrees. On the other hand, it takes approximately 1 hour, 6 minutes for water that is 70 degrees to reach its maximum temperature of 120 degrees when it enters the tank.

As a result, a 10-degree difference in the temperature of the water entering the boiler might have a substantial impact on the heating time.

### Gas Hot Water Heater Recovery

In order to compute the recovery time for a 50-gallon gas heater, we split the recovery durations for electric hot-water heaters in half. Water entering a 50 gallon tank at a temperature of 40 degrees Fahrenheit takes approximately 53 1/2 minutes to reach 120 degrees Fahrenheit. The identical procedure for 60-degree water entering the tank takes around 40 minutes, and for 70-degree water, it takes approximately 33 minutes. Another important component is draw efficiency, which is estimated as 70 percent of the total storage capacity of the heater tank’s entire storage capacity.

As a result, for a 50-gallon heater, the draw efficiency is credited to 35 gallons.

It takes an ordinary gas heater between 30 and 40 minutes to completely heat the water in its tank, depending on the model. To fully heat the water in its tank, the typical electric heater requires approximately double the time of the average gas heater; thus, you should expect it to take between an hour and an hour and 20 minutes to fully heat the water.

## How long does it take for a new 50-gallon water heater to heat up?

It takes approximately 1 hour and 20 minutes for a 50-gallon hot water heater with 5,500-watt elements set to 120 degrees to heat water that comes into the unit at a temperature of 60 degrees. In contrast, when the water entering this same tank is 40 degrees, it takes 1 hour and 47 minutes to heat it to the desired temperature.

## Why is my brand new water heater not getting hot?

A water heater that does not generate hot water might be due to a lack of electricity, a tripped limit switch, or one or more faulty heating components, to name a few possibilities. As a first step, make sure that the circuit breaker for your water heater is not tripped on your panel of electrical circuit breakers. Switch off the circuit breaker and then turn it back on if it has been tripped.

## How long does it take a 40-gallon water heater to heat?

If you have a 40-gallon electric water heater that uses 5500 watts and is set to 120 degrees, it will take around an hour to an hour and 20 minutes to heat the water.

## How long does it take a 10 gallon water heater to heat up?

A 6 gallon water heater will heat at a rate of 17.8 gallons per hour and will take around 20 minutes to reach its maximum temperature. If you have a 10 gallon tank, it will take around 33 minutes to reach its maximum temperature.

## How long does it take a brand new water heater to heat up water?

It takes an ordinary gas heater between 30 and 40 minutes to completely heat the water in its tank, depending on the model. To fully heat the water in its tank, the typical electric heater requires approximately double the time of the average gas heater; thus, you should expect it to take between an hour and an hour and 20 minutes to fully heat the water.

## How long does it take for a new water heater to get hot water?

It takes how long does it take for a gas water heater to get up to temperature?

Once the water has entered the tank, the normal gas tank heater will take around 30 to 40 minutes to heat it. When you first fill the tank with water from your plumbing supply, the tank will heat up for a few minutes.

## Is there a reset button on a hot water heater?

You’ll locate a reset button on the back of your electric water heater somewhere. It is often crimson in color and is generally seen around the thermostat. It might alternatively be concealed behind a detachable metal plate on the device, which would then be concealed behind some insulation. Once you’ve located the button, press and hold it for a few seconds.

## Why is my hot water not hot?

Check the higher thermostat if there is no hot water, if the supply is insufficient, or if the water is too hot. If the thermostat is no longer functional, it should be changed immediately. Because of silt building, even if the thermostat is operational, a lack of regular maintenance might result in problems even if the thermostat is operational. This can be resolved by flushing your water heater.

## What does the reset button do on a hot water heater?

The reset button on your water heater is a safety feature that prevents the water heater from operating if the temperature of the water within it reaches 180 degrees Fahrenheit or higher. ECO (emergency cut off) switch or “high limit safety thermostat switch” are two other names for the reset button that can be found on some models.

## How do I make my hot water heater heat up faster?

How to Get Hot Water More Quickly Pipe insulation should be installed. If you suspect that your water pipes are to fault for your lack of hot water, installing insulation to them may help to improve your issue. Pump for recirculating hot water in a building. Fixtures with a higher flow rate should be substituted. Upgrade to a tankless water heater to save money. Preventative Maintenance should be performed on a regular basis.

## Is 40 gallon water heater enough for a family of 4?

It’s generally accepted that you need a 40 gallon tank for 1 to 4 people, a 50 gallon tank to accommodate 4 to 6 people, and a 50 gallon high recovery or 75 gallon tank to accommodate 8 people and up to 10 people, respectively. In terms of energy usage, typical water heaters of 40 and 50 gallon capacity are very similar.

## How often should I heat my hot water?

This is a pretty prevalent urban legend. In reality, you don’t need to keep your water heated all of the time unless you want to. You may use your immersion heater or boiler to heat up hot water that has been collected in a tank or container. As long as the tank has a decent insulating jacket, it will be able to keep the water hot throughout the day without the need to reheat it frequently.

## What size heater do I need for a 10 gallon aquarium?

The capacity of a heater is typically measured in watts. For the most part, a capacity of around 5 watts per gallon of water should suffice as a general rule of thumb. As a result, a 50 watt heater will be required for a 10 gallon aquarium.

## Should I leave my propane water heater on all the time?

It just takes a little spark to ignite highly flammable propane gas, which can result in an explosion or fire in the event of an accident, depending on the circumstances. If your RV hot water heater is fueled by propane, the straightforward and safe response is that you should not leave it on all of the time.

## How much hot water does a 20 minute shower use?

If a normal showerhead is installed, it will consume approximately half a gallon more water per minute, resulting in a 25-gallon emittance every 10 minutes, or 50 gallons over the course of a 20-minute shower session. *One gallon is equal to 4.54 litres.

## How long of a shower can you take with a 40-gallon water heater?

A 40-gallon water heater may supply enough hot water for up to two showers in an hour (assuming no other water-using appliances are in use).

## Why does it take my hot water so long to get hot?

What is it about the hot water that is taking so long? Many factors contribute to this: the distance between the faucet and the water heater, the diameter of the pipe, and the flow velocity of the water. The greater the distance that hot water must travel before reaching the shower faucet, the longer it will take to heat up the faucet. Having a larger house makes this even more important.

## Where is the reset button on a gas hot water heater?

A reset button for the water heater is positioned in the middle of the limit switch, right above the water heater thermostat, and is generally red in color. In the event that something goes wrong with the water heater and the water becomes too hot, the limit switch will cut down the electricity to the water heater.

## Water Heater Recovery Heat Up Times Comparison Chart

Recovery of Waste Water from Water Heaters Heat Up Times Compared to One Another Time Required for Water Heater to Come to Temperature There isn’t much that can ruin your day quite as quickly as taking an ice cold shower, and if you have the wrong hot water heater, this might become your new normal very soon. In the event that your current heating unit fails on you, don’t let your stress over the situation lead you to make the wrong choice for a replacement. Prior to selecting a hot water heater, take into consideration how long it will take for the water heater of your choice to heat up completely.

The question is, how long does it take a hot water heater to reheat water once it has been depleted?

 Water Heater Type Time to Heat Back Up Gas – Conventional Tank 30-45 mins Gas Tankless 0 mins Electric – Conventional Tank 60-80 mins Electric Tankless 0 mins

Water Heaters Powered by Natural Gas Specifications for a Gas Conventional Water Heater Once the water is in the tank, the normal gas tank water heater will take 30 to 40 minutes to heat it up to the desired temperature. When new water from your water supply is fed into the tank, this early heat up occurs as a result of the incoming water. Some mathematical calculations are required to provide a more specific explanation of why this takes 30 minutes. The size of the heater’s tank is obviously important, since more water will take longer to heat than a smaller tank.

• In simple terms, a BTU is the amount of heat required to elevate one pound of water by one degree Fahrenheit in temperature.
• For example, the typical hot water heating unit tank holds 40 gallons of water.
• Thirty-five gallons times 8.3 pounds per gallon is 330 pounds of water.
• For the sake of not having to get into full-blown thermodynamics calculations, we may simplify and say that a 40,000 BTU system with a 40-gallon tank needs half a minute to heat each gallon, which results in a half-hour heat up time.
• For those with larger tanks or lower BTU ratings, on the other hand, it will take longer to heat their tanks.
• Likewise, keep in mind that this is the amount of time it takes for new cold water to be heated in your tank, so plan accordingly.

When all of the warm water in the tank has been consumed, the length of time it takes to warm up additional water is taken into consideration. It will be necessary to restart the gas tank water heater at that point in order to heat new water from the entering groundwater temperature level.

#### A gas tank hot water heater will take roughly 40 minutes to warm up new inbound water for the very first time.

Specifications for an Electric Conventional Water Heater When compared to gas tank hot water heaters, electric tank hot water heaters often require double the amount of time to heat water. Electric components, while often more cost-effective, are just incapable of matching the high performance of gas-fired systems. It would take approximately one hour for an electric hot water heater to heat the 40-gallon tank shown above from the moment brand-new water is introduced into the system. As a result, homes with higher water needs are more likely to choose for a whole-house gas tank water heater rather than an electric model.

• A tank hot water heater that uses electricity takes 60-80 minutes to heat water, but a tank hot water heater that uses gas takes 30 minutes.
• Unless the system is malfunctioning, this should not take more than a few seconds for a typical-sized house to complete the cycle.
• Due to the fact that a tankless gas heater heats water instantaneously, it should only take a few seconds for the warm water to travel through the pipes and into the component.
• For the most part, water does not become heated until the dishwashing machine or hot water faucet is turned on.
• Due to the fact that a tankless electrical heater warms water fast, it should only take a few seconds for the warm water to make its way through your pipes and into your fixture.

Temperature of the incoming water-For both tankless and tank-style hot water heaters, the temperature of the incoming water will determine how long it will take for the water to reach its maximum temperature. It should not be much affected by the inflow temperature because tank heating units conserve water while while maintaining a high level of heat. Tankless heating systems, on the other hand, feed incoming water as needed only a few seconds before it is released from your faucet. This suggests that if the groundwater temperature level is really low, the water may not heat up as quickly as it otherwise would be expected.

1. Despite the fact that they appear to be relatively simple in comparison to other household mechanicals, water heaters often require more attention.
2. A professional will check for any settings or calibration that may be impacting the unit’s operation.
3. Inadequate basic maintenance, such as failing to halt work to wipe up silt that may have accumulated in the pipes, might result in decreased efficiency.
4. In general, the greater the distance between you and your bathroom and the heating system, it will take longer for warm water to reach you.
5. Along with the length of piping, the width of your pipes may have an impact on how long it takes your water heater to heat up.

Pipe Diameter In that it can carry more water, a larger pipe is advantageous, but it will take more water to be heated before the pressure rises up sufficiently to force it through the rest of the pipeline system.

## How Long Does it Take a Gas Water Heater to Reheat?

Home-made gas water heaters can be a cost-effective way to ensure that a household has enough hot water on hand. Water heaters powered by electricity can have much higher energy costs in some places, and these devices are more prone to power outages than water heaters powered by gas (natural-draft or otherwise). if (sources.length) then this.parentNode.removeChild(sources); then this.onerror = null; this.src = fallback; )(, arguments.target.currentSrc.replace; )(, arguments.target.currentSrc.replace; )(, arguments.target.currentSrc.replace; (//\$/, “), (//\$/, “), ‘/public/images/logo-fallback.png’) is a fallback logo image.

## BTU

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BTUs are a unit of measurement for energy consumption that may be used to compare the performance of different types of fuel.

## Tank Size and Thermostat Setting

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Using a thermostat set at 122 degrees Fahrenheit, it would take around 30 minutes to heat the tank completely if all of the heat were transmitted to the water.

## Tank Efficiency

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This results in an increase of roughly 36 minutes in the time required to reheat a 40-gallon water heater operating at 40,000 BTUs.

## Age of the Water Heater

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” loading=”lazy”> ” loading=”lazy”> The state of the unit and the amount of build-up within the tank can both have an impact on the efficacy of the burner.

Due to insufficient heat transmission from the flame to the water as a result of inappropriate air-to-gas ratios or calcium and lime accumulation in the tank, the quantity of heat transferred to the water is reduced, resulting in an increase in the length of time it takes to heat the water up.

## The Drip Cap

• Gas water heaters may be a reliable source of hot water for a household
• Yet, they can be expensive. It would take approximately 30 minutes to heat the tank if all of the heat was transferred to the water
• However, if the flame is not as hot due to incorrect air to gas ratios or if there is a build-up of calcium and lime in the tank, the amount of heat that is transferred to the water is reduced, resulting in an increase in the amount of time it takes to heat the water.

## How Long Does it Take for Electric & Gas Water Heaters to Heat Up?

An ice cold shower is one of the few things that can completely derail your day, and if you have the improper water heater, this might become your new normal. If your present heater is on its last legs, don’t allow the stress of the circumstance push you into making the wrong decision about your new heater. Before you purchase a water heater, take into consideration how long it will take for your water heater of choice to reach operating temperature. If you want to run a large amount of hot water at the same time, you’ll need a more powerful system than if you merely want to take a hot shower on a consistent basis.

In spite of the numerous variables that might influence the time required, the chart below illustrates the average time required for each kind of water heater to heat up.

## How Long It Takes A Water Heater to Heat Up For The First Time

Water Heater Type Time Takes to Heat Up
Gas Tank 30-40 minutes
Gas Tankless 0 minutes *
Electric Tank 60-80 minutes
Electric Tankless 0 minutes *

*If the tankless water heater is appropriately designed and placed, it may offer practically immediate heat. Source of the graph

## How Long Does it Take for a Gas Water Heater to Heat Up?

Once the water has entered the tank, the normal gas tank heater will take around 30 to 40 minutes to heat it. When you first fill the tank with water from your plumbing supply, the tank will heat up for a few minutes. A more detailed explanation of why this takes 30 minutes necessitates the use of mathematics. The size of the heater’s tank is obviously important, since more water will take longer to heat than a smaller tank. The BTU (or British Thermal Unit) rating of the heater is the next most important consideration.

• A heater with a higher BTU rating will heat water more quickly.
• Each gallon of water contains around 8.3 pounds of water; as a result, our sample tank has approximately 330 pounds of water to heat.
• If the water is at 60 degrees and you want to bring it up to 120 degrees, you will need to raise the temperature by 60 degrees to do this.
• Because of the lower tank size and greater BTU rating, your hot water heater’s warm-up time will be significantly reduced.
• You will need to keep the following criteria in mind if you want a high-efficiency water heater that will heat your water in the period of time you specify (after it has run out of hot water) and hold a significant volume of hot water.
• The first time you switch on the hot water after your tank has been holding hot water for a while, you should get hot water in a matter of minutes because tanks store pre-heated water, not minutes or hours.

That’s when the gas tank water heater will have to start heating new water from the temperature of the entering groundwater again, which will take longer. In order for a gas tank water heater to heat up new incoming water for the first time, it will take roughly 30 minutes.

## How Long Does it Take an Electric Hot Water Heater to Heat Up?

When compared to its gas equivalents, electric tank water heaters often need double the length of time to heat water. Despite the fact that electric components are often more cost-effective, they cannot match with the great performance of gas-fired systems. It would take approximately one hour for an electric water heater to heat the 40-gallon tank indicated above from the moment new water is introduced. As a result, homes with higher water needs are more likely to choose for a whole-house gas tank water heater rather than an electric model.

When it comes to heating water, an electric tank water heater takes 60-80 minutes, compared to 30 minutes for a gas tank water heater.

## How Long Does it Take a Tankless Gas Heater To Warm Up?

Tankless water heaters heat your water on demand, which means that the distance between your heater and the device you are using is the only factor that defines how long it will take for you to obtain hot water from your faucet. Ideally, this should not take more than a few seconds with a typical-sized house if the system is functioning properly. It may take a few extra seconds for the water to travel through the water pipes and reach appliances that are located further away from the heater in a large home.

## How Long Does it Take a Tankless Electric Heater To Warm Up?

Tankless electric water heaters work in a similar way to tankless gas water heaters in that they only begin to heat your water when an item requires it. This means that unless you turn on the dishwasher or turn on the faucet, the water will not be warmed. The majority of the time, an electric tankless heater will give hot water in a matter of seconds, but they can take a fraction of the time that gas systems do owing to the greater strength of gas heat. Because a tankless electric heater warms water instantaneously, it should only take a few seconds for the hot water to flow through your pipes and into your fixture once it has been heated.

## Factors That Affect Heat Up Time

Apart from the variables we’ve already covered, such as tank size and BTU rating, there are a variety of other elements that might influence how long it takes your water heater to heat water for the first time.

• Temperature of the incoming water– For both tankless and tank-style water heaters, the temperature of the incoming water will play a role in determining the amount of time it takes to heat up. Because tank heaters retain water and maintain a constant temperature, the entering temperature should have little effect on them. Instead than storing water in tanks, tankless heaters deliver incoming water on demand, only minutes before it flows out of your faucet. In other words, if the groundwater temperature is really low, the water may not heat up as quickly as it could otherwise. Neither kind of heater is impervious to the effects of extremely cold ambient temperatures in the room or area where they are housed
• But, it will take more water to be heated before the pressure is high enough to force the water through the remaining pipe system.

In conclusion, there is a heater out there that is appropriate for everyone. Be sure to consider your requirements before picking either a traditional tank or a tankless system. See our assessment of the top models on the market now that you know how long it takes for both gas and electric water heaters to heat up. With amazing brands like Bosch, Rheem, and Takagi, you’re sure to find something that works for your needs!

## How Long Does it Take for a Water Heater to Heat Up?

This means that, at no additional cost to you, we may gain a small profit on purchases made via our links. Briefly stated, less water warms more rapidly than more water; hence, the volume of water you are heating, as well as the temperature at which it is heated, influences how soon you will get it.

## Does Your Hot Water Flow Seem Too Slow?

Hot water heater flow rates may be determined with the use of a simple formula that only requires two variables to be entered into the computer. One possible version of the formula is as follows: Available hot water is determined by the size of the hot water tank and the rate of heat input. Hot WaterIn layman’s terms, the volume of water you are heating, together with the amount of heat you apply to it, affects how soon you will have warm water. Consider a tiny point-of-use water heater or a water heater for a recreational vehicle.

1. To determine whether or not your water heater’s recovery rate is slow, do certain basic measures that are often utilized by many plumbers in the industry.
2. to 9 a.m.
3. The peak use reflects the greatest amount of water that the water heater can handle.
4. If it is capable of managing peak hours, it is capable of fulfilling the remainder of your requirements.
5. Add extra 20 gallons to accommodate two more baths for a household of four people.
6. The entire amount of water is 90 gallons.
7. Any unit’s maximum draw capacity is around 70% of its total capacity.
8. That implies that with a 50-gallon water heater, there is always 35 gallons of hot water accessible at all moment.
9. In accordance with this prediction, bathing while also washing dishes and clothing at the same time will result in running out of hot water very rapidly.
10. Who would have thought it!?

## Recovery Efficiency

Another element to consider while scaling is the amount of time it takes to recover. While gas heaters heat water more quickly, their recovery efficiency is lower than that of electric heaters. For gas water heaters, the efficiency is 75%, whereas for electric water heaters, the efficiency is 100%. Gas hot water heaters, on the other hand, even at lower recovery efficiency, generate more hot water and do it much more quickly than their electrically powered equivalents. Gas heaters with a 30,000 BTU burner create 27.3 gallons per hour at 75 percent recovery efficiency, but electric heaters with a 750-watt heating element produce 3.1 gallons per hour at 75 percent recovery efficiency.

The output of an electrical hot water heater rises with the addition of more heating elements and the use of greater wattages.

One hour’s worth of heating with an electrical heating element results in 20.5 gallons of 100 percent increase when using a 4,500 watt electrical heating element.

This electrical heating element is six times more powerful than the one used in the previous example. The 20,000 BTU burner has a 33 percent lower BTU output than the 30,000 BTU burner (BTU example).

### What is a Good Water Heater Recovery Rate?

If the water heater has a capacity of 40 to 50 gallons per hour, anything above 40 gallons per hour would be considered an excellent recovery rate. The higher the BTU rating of the burner, the better it is for recovery in general. An average 50-gallon electric water heater with twin heating elements has a recovery rate of 20 gallons per hour, which is satisfactory for most applications. Single element water heaters will, of course, have a lesser recovery rate than their two-element counterparts.

## The Major Factor

The image is courtesy of HotWater.com. Don’t get yourself mixed up. The amount of water being heated, the method by which it is heated, and the amount of water being utilized are the elements that determine how long it takes the water heater to heat up. The amount of water heated each hour is specified in the heating rates. The capacity of the storage tank indicates how much hot water is immediately accessible when you turn on the faucet. You might consider upgrading to a larger tank if your family is large, has several bathrooms, and has several hot water-consuming activities occurring at the same time on a frequent basis.

• Greater tank capacities are designed for homes who require a big volume of hot water in a short period of time.
• As a result, a 40-gallon tank will meet your demands, and you will save money by not purchasing a larger 50-gallon tank that you will not need.
• See the water heater recovery table in the preceding section.
• When using an electric water heater, increase the time by half to 1.5 hours.
• Another point to consider in the discussion over whether to use a tank or not.

## How Long Does It Take For a Water Heater to Heat Up?

Starting a chilly day with a brief hot shower is nothing short of a blessing that will help you have a fantastic day. When considering whether to purchase a tank water heater or a tankless water heater, the first thing that comes to mind is how long it takes for a water heater to heat up the water. There are a variety of elements that influence the amount of time it takes for water to heat up, including the type of water heater used and the distance between the device and the water fixtures. Aside from that, their sizes vary according on the model, so it’s important to know how long you’ll have to wait if the supply runs out before purchasing one.

If it is a gas heater, it will typically take 30 to 40 minutes to reach its maximum temperature. It takes around an hour and may be as much as 20 minutes longer for an ordinary electric heater, which is twice the time it takes for a gas heater.

## How Long For Water Heater to Heat Up

In general, larger water heaters take more time to heat the water than smaller ones. Additionally, various models require varying amounts of time to heat the water. In addition, water heaters fueled by different fuel types, such as liquid propane, natural gas, and electricity, have varying times for heating cold water to a comfortable temperature.

## How Long Does It Take a Gas Water Heater to Heat Up?

The efficiency and speed with which gas hot water heaters operate compares favorably with electric types. Large burners burn natural gas as fuel for the water heaters, which are located at the bottom of the tanks. Temperature settings and the temperature of the cold water that is to be heated determine how long a gas water heater takes to heat to a desired temperature. You will find some averages in the table below:

• It will take 30 to 40 minutes to heat a 40-gallon gas water heater, 40 to 50 minutes to heat a 50-gallon gas water heater, and 60 to 70 minutes to heat an 80-gallon gas water heater.

The temperature of 62° is used for the sake of these computations. Further, gas boilers are the most efficient, quickest, and most conventional way to heat water in a home, according to the EPA. The usage of natural gas as a source of energy has been prevalent for many years. One of the benefits is the reduction in energy expenses that it provides. Obviously, the size of the heater’s tank has a significant influence on the amount of time it takes to heat additional water. The BTU (or British Thermal Unit) rating of the heater is the next important factor to take into account.

• Water heating may be accelerated by increasing the BTUs.
• In the sample tank, we may estimate that there is roughly 330 pounds of water in it, based on our calculations.
• 330 pounds of abrasive 40 gallons x 8.3 lbs per gallon Equals 8.3 pounds of water Consider the following scenario: the water temperature is 60 degrees and you want it to reach 120 degrees.
• To simplify the calculation, we may assume that each gallon takes half a minute to heat up and that it takes around a half hour to heat up the entire tank, which is 40,000 BTUs and a 40 gallon tank, respectively.
• If your tank, on the other hand, is huge or has a lower BTU rating, it will take longer for the heat to reach the temperature you prefer.
• Additionally, keep in mind that this is the amount of time it takes for new cold water to heat up in your water heater tank.

If you run out of hot water in the tank, it’s crucial to calculate how long it will take to heat up new water once the old water has been used up completely.

## How Long Does it Take an Electric Hot Water Heater to Heat Up?

Water heaters that are powered by electricity often take twice as long to heat as water heaters that are powered by natural gas or propane. Despite the fact that electric components are often more cost-effective, they are unable to compete with gas-fired systems in terms of overall performance. It would take approximately one hour for an electric water heater to heat a 40-gallon tank from the time fresh water is injected into the tank to reach the desired temperature. The time it takes for electric water heaters to heat up is longer than the time it takes for gas water heaters.

The wattage of the heating element and the intended temperature of the water heater are the factors that affect how long it takes to heat water.

The below-average results, on the other hand, should be beneficial:

• A 40-gallon electric water heater will take 60-80 minutes to heat
• A 50-gallon electric water heater will take 145-150 minutes to heat
• And an 80-gallon electric water heater will take 120-130 minutes to heat.

It will take around an hour to an hour and 20 minutes to heat a 40-gallon electric water heater set at 120 degrees and consuming 5500 watts to heat the water. It will take around one hour and forty-five minutes for the heat to reach the desired temperature in a 50-gallon electric tank. Typically, it takes two hours for a big, 80-gallon electric water heater to heat the water to boiling temperature. As a result, residences with higher water consumption are more likely to opt for gas water heaters rather than electric water heaters.

## How Long Does it Take a Tankless Gas Heater To Warm Up?

Water is heated on demand with tankless gas water heaters, thus the speed with which you obtain hot water is dictated only by how near your heater is to the device that is receiving the water. If the system is running properly, this should not take more than a few seconds in a typical-sized home. When water travels via lengthy pipes within a large house, it will take a few extra seconds for the water to reach appliances that are located further away from the heat source than they would otherwise.

## How Long Does it Take a Tankless Electric Heater To Warm Up?

A tankless electric water heater only begins to warm up when you turn on an appliance. This is known as instantaneous heating. As a result, the water is not warmed before being used in the dishwasher or by turning on the faucet. Because gas heat is more powerful than electric heat, an electric tankless heater can normally heat water in minutes, but it will take a bit longer than a gas tankless heater. The instantaneous heating provided by electric heaters with tankless technology allows the hot water to reach the fixture after flowing through your pipes in a matter of seconds.

## 6 Factors That Affect How Long A Water Heater Takes To Heat Up

In most cases, the waiting time is merely a rough estimate. For a variety of reasons, water heaters might take an excessive amount of time to heat up. Some of them are common to all sorts, while others are peculiar to a particular type. Let’s go through each of them in further depth.

### First Hour Rating

When it comes to water heaters, the first-hour delivery rate (FHD) is critical. When the FHD is filled with warm water, it displays the number of gallons that can be provided in an hour. It will take less time to acquire hot water when your FHD rate is higher than it would take if your FHD rate is lower than it is. A FHD rate of 60 to 80 GPH would be optimal for a unit of 50 gallons, according to the manufacturer.

In general, a high ranking for the first hour indicates a low waiting time in most cases. The type of fuel used, the amount of the tank, and the size of the heating components or burners all go into the calculation.

### Inlet Water Temperature

The temperature of the inflow water, also known as the temperature increase, is one of the parameters that might have a significant impact on the recovery time. When the temperature of the inlet water is low, it takes a longer time for a water heater to heat the water to the appropriate temperature. The temperature of the inlet water will fluctuate depending on where you are in the nation. Northern hemisphere weather is often cooler in comparison to southern hemisphere weather. In colder areas, it is normal for the input water temperature to be in the range of 40 degrees Fahrenheit or less.

The water heater takes a long time to heat water from 40-50 degrees to 140 degrees, depending on the water temperature.

It takes longer to heat up intake water that is cooler than the ambient temperature.

### Water Heater Size

Other factors, such as the size of the water heater, might contribute to longer water heater heating periods. As we saw in our previous instances, a larger tank needs more time to heat up completely. It is simply a question of boiling up additional water. The gallon capacity of a storage water heater has a significant impact on how much water can be heated rapidly and efficiently. The average storage water heater has a capacity of 30 to 80 gallons of store water in it. In order to accelerate the heating process in bigger tanks, two heating elements or a huge burner will often be used.

The water heats up faster in smaller tanks because fewer gallons are required to heat the water in them (and runs out sooner).

When it comes to greater capacity gas water heaters, the burner is larger, which allows them to heat up more rapidly.

### Fuel Type

The type of fuel used has a significant impact on how long it takes to heat water. Water heaters that use natural gas heat water more faster than water heaters that use electric energy. Gas burners, as opposed to electric components, can achieve greater temperatures. It is well known that electric water heaters take a long time to heat the water they supply. This is due to the fact that electrical heating components are less effective than gas burners in terms of energy efficiency. For 50-gallon gas water heaters, the flow rate is often between 80 and 90 GPH, whereas the flow rate for 50-gallon electric water heaters is typically between 58 and 66 GPH.

### Water Heater Type

Storage-type water heaters are those that have tanks that store and heat the water they heat. Tankless types do not have storage tanks; instead, they heat the water as it is drawn from the faucet. In terms of how quickly they heat water, the two types of water heaters operate in a distinct manner. The time it takes for a storage water heater to heat up might vary between 30 minutes and an hour and a half.

Tankless water heaters, on the other hand, provide hot water instantaneously. Overuse of hot water will result in a decreased flow rate (measured in gallons per minute), but the water that does come out of the faucet will still be warm because of the excess heat.

### Recovery Time

When a water heater is in operation, its recovery rate refers to the amount of hot water it can deliver each hour while the heater is in use. Water heater recovery rate refers to the speed with which the water heater can recover (refill) with cold water and heat the water once again. When using a unit with a high recovery rate, heating hot water takes less time, resulting in hot water being accessible sooner. As a result, a water heater with a fast recovery rate will be able to swiftly heat up the cold intake water, even if you require a large amount of hot water at the same time.

It takes approximately 1 hour and 20 minutes for an electric hot water heater intended for 50-gallon tanks to reach the temperature of 60 degrees when the elements are set at 5,500 watts.

Do you know how long you’ll have to wait for the hot water to return?

It takes around 20 minutes to fill a 50-gallon tank, and you may have to wait another 20 minutes for the water to heat up before using it.

With a 40-gallon water heater, you can take two showers in an hour if you don’t have any other water appliances.

It takes around 60 to 70 minutes for a big 80-gallon gas water heater to reach operating temperature.