How Many Btus Is A 50 Gallon Water Heater

The higher the btu output of the heater the faster the heater will bring the water from pool temperature up to spa temperature.

How many btus is a 50 gallon water heater. Recovery of gas fired water heaters is a function of the btu input and overall efficiency. As a basic rule of thumb each gpm subtracted from the total allows a. Thus a 33 000 btu heater can heat 33 000 pounds of water by one degree in an hour. 3 4 people you ll need at least a 50 gallon capacity tank electric or a 40 gallon capacity tank natural gas or liquid propane.

Typically a 70ºf 39ºc water temperature rise is possible at a flow rate of 5 gallons per minute through gas fired demand water heaters and 2 gallons per minute through electric ones. Recovery rate a more common measure for water heaters is the recovery rate which indicates the amount of gallons of water that can be heated to 100 degrees fahrenheit. The higher the btu input and efficiency the faster the recovery. With a giant 400 000 btu heater an average 8 x 8 spa could go from 80 degrees up to 104 degrees in about an hour.

Input ranges from about 32 000 on a 30 gallon unit to 88 000 on a 100 gallon tank. For example a 200 000 btu gas fired tankless unit is able to raise the total water temperature 50 f at a maximum of 7 4 gpm. A common input is 34 000 btus on a 40 gallon tank and 36 000 btus on a 50 gallon tank. Bradford white rg250t6n 50 gallon 40 000 btu defender safety system high efficiency residential atmospheric water heater natural gas please note this unit does not meet the air quality requirements for portions of southern ca.

The 50 gallon water heater is one of the most popular sizes for residential use. Bradford white s high efficiency energy saver atmospheric vent residential gas water heater features the defender safety system and offers additional. A common input is 34 000 btus on a 40 gallon tank and 36 000 btus on a 50 gallon tank. Storage tank hot water heaters are sized based on btu input and capacity in gallons.

There are several models to choose between on the market today. Nobody wants to have to turn on your spa two hours in advance just for it to warm up. Smith 50 gallon proline power vent water heater available from supplyhouse has an fhr of 90 gallons so it will provide up to 90 gallons of hot water in an hour. If your family size is 5 or more you ll need an 80 gallon tank electric or a 50 gallon tank natural gas or liquid propane.

For example the a. The btu input can be found on the manufacture s id plate on the. Input ranges from about 32 000 on a 30 gallon unit to 88 000 on a 100 gallon tank. The higher the btu input and efficiency the faster the recovery.

Or 330 pounds by 100 degrees. Faster flow rates or cooler inlet temperatures can sometimes reduce the water temperature at the most distant faucet. A water heater is ranked by btu input but really means btus hr.