What is a good recovery rate for a hot water heater?

When determining a good recovery rate for a hot water heater, it largely depends on your household’s needs. In many cases, you’ll see a residential water heater recovery rate average around 40 gph, though there are many models that can be as high as 50 to 60 gph.

How do you calculate water heater recovery?

To get an approximate first hour rating based on your place, you can determine it using the following rule of thumb formula: Tank Capacity x . 70 + Recovery (see Recovery Rating above) = First Hour Rating. Example: If the water heater is 40 gallons with a 36,000 BTU burner you take; 40 (gallons) x .

How fast does a water heater recovery?

A gas water heater will take about an hour to recover, while an electric water heater will take about two hours. If you have a high recovery water heater, which normally has a larger tank, it will heat the water in much less time, on average about 20 minutes.

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

A 50-gallon hot water heater with 5,500-watt elements set to 120 degrees takes about 1 hour and 20 minutes to heat water coming in to the unit at 60 degrees. Conversely, when the water entering this same tank is 40 degrees, it takes 1 hours, 47 minutes to heat it up.

How many BTU is a 40-gallon electric water heater?

34,000 BTUs
A common input is 34,000 BTUs on a 40-gallon tank and 36,000 BTUs on a 50-gallon tank. The higher the BTU input and efficiency, the faster the recovery. Electric water heaters typically have one 5,500-watt or two 4,500-watt elements.

How do I size a residential water heater?

You can estimate the necessary tank capacity (in gallons) based on the number of people in the house:

1 or 2 people—23 to 36 gallons.
2 to 4 people—36 to 46 gallons.
3 to 5 people—46 to 56 gallons.
5 or more people—over 56 gallons (add 10 gallons per additional person)

What should the recovery rate be for a 60 gallon water heater?

For example, if you have a large household and you use a lot of hot water at once, the recovery rate should be at least equal to the size of your water heater. So, a 60-gallon water heater should have a recovery rate of at least 60-gallons. If you already have a water heater…

How long does it take to heat up an 80 gallon water heater?

But to help you answer this question, we’ve listed average water heater recovery times below: The average 80-gallon gas tank water heater takes 60-70 minutes to heat up The average 80-gallon electric tank water heater takes around 2 hours to heat up * These numbers assume an incoming water temperature of around 62°.

How long does it take for a water heater to reheat?

If you’re wondering how long it should take your tank water heater to reheat once the water is depleted, the answer is: * These numbers assume an incoming water temperature of around 62°. Think your water heater is taking too long to heat up based on these numbers? Don’t worry.

How does temperature affect the recovery time of a water heater?

4. Temperature rise. How it affects recovery time: The higher the temperature rise, the longer the recovery time of your water heater. “Temperature rise” simply refers to the difference between the temperature of the incoming water and the temperature you want it to be heated to.

How many gallons per hour in a water heater?

Example: If the water heater is 40 gallons with a 36,000 BTU burner you take; 40 (gallons) x .7 + 49.9 (GPH at 50 degree rise in temp — make sure you figure on winter water temps) = 77.9 gallons first hour rating.

How is the first hour recovery rate calculated?

The First Hour Rate is calculated as the maximum volume of hot water delivered during the first hour of heating. The Recovery Rate is the amount of water (in gallons per hour) one heater can raise when the temperature increases by 60 F.

What’s the recovery rate on a Bradford white water heater?

That number is the recovery rate. *Note: If you use a higher-than-average output temperature (over 120), or your incoming cold water is especially cold then the recovery rate may be slightly lower than what’s on the label. Specs for a Bradford White water heater. Source: www.bradfordwhite.com