Typical Home Water Heater Size

The largest of these miniature units can also be used to provide hot water to secondary bathrooms that may be situated far from your home s main water heater.

Typical home water heater size.

To determine what size tankless water heater your family needs list the water devices you. 5 or more people need a 50 80 gallon water heater. Again the more you rely on hot water on a regular basis the more btus and capacity you ll need. A tankless water heaters flow rate should be equal to your family s peak demand.

You can estimate the necessary tank capacity in gallons based on the number of people in the house. However every family has different water demand requirements. Now in order to choose an electric breaker multiply the current draw of the water heater with 125 per cent in order to determine the size of the breaker you will need. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.

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. The good news is that just by following a few guidelines you can find the perfect size water heater. In the above example we would require a 15 6 amp circuit breaker for our us readers. Consequently these are the two most frequently installed sizes.

You can select your application and we ll guide you. That s the measure of how much hot water the heater will deliver during a busy hour such as first thing in the morning. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Sizing storage and heat pump with tank water heaters.

Storage tank hot water heaters are sized based on btu input and capacity in gallons. Utility water heaters usually range in size from 2 5 to 19 gallons. For commercial sizing applications we have developed statesize a robust sizing program. Typically residential water heater sizes range from 40 to 100 gallon tanks.

The first hour rating is the number of gallons of hot water the heater can supply per hour starting with a tank full of hot water. The fhr is always on the heater s yellow energyguide label but if you want. Determine the home s fhr or first hour rating. To select the right state water heater for your home try our xpert product selector for personalized estimates of the performance and estimated energy cost.

Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. 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. Simply locate the appropriate water heater sizes on ecomfort using your information.