Average Residential Water Heater Size

If you re going with a storage tank water heater here s a rough guide for storage tank capacity.

Average residential water heater size.

Sizing storage and heat pump with tank water heaters. 1 2 people you ll need a water tank with at least a 30 gallon capacity. Typically residential water heater sizes range from 40 to 100 gallon tanks. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.

Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired. We ll explain why the numbers above are just loose estimates and how they might not accurately meet your hot water needs. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. You can estimate the necessary tank capacity in gallons based on the number of people in the house.

2 3 people you ll need at least a 40 gallon capacity tank. 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. We ll also show you how to calculate the exact water heater size that meets your needs and saves you money. 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.

What size water heater do i need. 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.