Just contact us. How it affects recovery time: The larger the water heater, the longer it takes to heat up. Traditional tank water heaters are sized according to how many gallons of hot water they can hold at once. How it affects recovery time : The higher the first hour rating, the shorter it takes for the water heater to heat up all of its water. How it affects recovery time : Electric water heaters take roughly twice as long to heat water than gas water heaters.
Gas water heaters are, across the board, much faster at heating water than electric water heaters. A heater with more BTUs can heat water faster. For example, the average hot water heater tank is 40 gallons. There are approximately 8. If the water is already 60 degrees and you want it to reach degree hot water, a temperature rise of 60 degrees is needed. To avoid getting into full-blown thermodynamics calculations, we can simplify and say that a 40, BTU system with a gallon tank needs one half of one minute to heat each gallon, resulting in a half hour heat up time.
If you have a larger tank or lower BTU rating, on the other hand, it will take longer to heat your tank. If you want an efficient water heater which will heat up your water in the amount of time you desire after it runs out of hot water as well as store a good amount of hot water, these are the specifications you will need to keep in mind.
Also, keep in mind that this is the amount of time it takes for new cold water to be heated in your tank. When turning on the hot water for the first time after your tank has been storing hot water already, you should have hot water within just a few moments because tanks store pre-heated water. This amount of time it takes to heat up new water comes into consideration when all the hot water in the tank is used up.
A gas tank water heater will take approximately 30 minutes to heat up new incoming water for the first time. Electric tank water heaters typically require double the amount of time compared to their gas counterparts. Electric elements, while typically more economical, simply cannot compete with the high performance of gas-fired systems. From the time new water enters, it would take about an hour for an electric water heater to warm the gallon tank described above. This is why homes with larger water demands usually decide to purchase a whole house gas tank water heater instead of an electric model.
If too much hot water is being used at once, the flow rate in gallons per minute will drop, but the water that does come out will still be hot. Typically, storage water heaters can hold anywhere from about 30 to 80 gallons of water. Smaller tanks heat water faster and run out of hot water faster because there are fewer gallons to heat. This is just like heating water in a small 2-qt. The water in the saucepan will boil faster.
Bigger electric models have two heating elements to help the process along. Large capacity gas water heaters have a bigger gas burner to help them heat up quicker.
The original water temperature has a lot to do with how long it takes for a unit to heat it up. In colder climates, the inlet water temperature is usually about 40 degrees Fahrenheit.
The water heater takes time to heat water from degrees up to degrees. It will take about an hour to an hour and 45 minutes in 40 and gallon units. Generally, you should have hot water within less than 2 hours, no matter what type of water heater you have. If your water heater takes more than about 2 hours to heat up, call a professional to take a look. Andrew Helling is the founder and editor of REthority.
He graduated from the University of Nebraska at Omaha where he obtained a Finance and Banking degree. As a formerly licensed real estate agent and property manager of single-family homes, Andrew knows real estate. More About Andrew.
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