Average Water Heater Capacity

2 3 people need a 40 gallon water heater.

Average water heater capacity.

However every family has different water demand requirements. To properly size a storage water heater for your home including a heat pump water heater with a tank use the water heater s first hour rating. If you re going with a storage tank water heater here s a rough guide for storage tank capacity. For 2 to 3 people.

3 4 people need a 40 50 gallon water heater. 120 volt elements consume 1125 watts while residential 240 volt heaters use 4 500 watts. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. How to determine the required size of a tankless hot water heater.

For a tank style heater household size is a simple indicator of hot water needs. Simply locate the appropriate water heater sizes on ecomfort using your information. Tankless water heaters come in two types gas or electric. 2 3 people you ll need at least a 40 gallon capacity tank.

1 2 people you ll need a water tank with at least a 30 gallon capacity. Tankless water heaters capacities aren t measured in gallons stored but in flow rates. For 1 to 2 people. Typically residential water heater sizes range from 40 to 100 gallon tanks.

Sizing storage and heat pump with tank water heaters. You can estimate the necessary tank capacity in gallons based on the number of people in the house. Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs. A tankless water heaters flow rate should be equal to your family s peak demand.

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 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. Utility water heaters usually range in size from 2 5 to 19 gallons. Consequently these are the two most frequently installed sizes.

5 or more people need a 50 80 gallon water heater. Well to get an accurate answer you d have to calculate out how much hot water you typically use during your busiest hot water using hour. Water heaters running on 120 volt power have a long recovery time which is impractical for most households.