Average Residential Water Heater Size

1 2 people you ll need a water tank with at least a 30 gallon capacity.

Average residential water heater size.

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. What size water heater do i need. Typically residential water heater sizes range from 40 to 100 gallon tanks. We ll also show you how to calculate the exact water heater size that meets your needs and saves you money.

2 3 people you ll need at least a 40 gallon capacity tank. Simply locate the appropriate water heater sizes on ecomfort using your information. You can estimate the necessary tank capacity in gallons based on the number of people in the house. 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.

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. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. We ll explain why the numbers above are just loose estimates and how they might not accurately meet your hot water needs. If you re going with a storage tank water heater here s a rough guide for storage tank capacity.

Sizing storage and heat pump with tank water heaters. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.