What Size Tankless Water Heater For Family of 4?

What size tankless water heater for a family of 4 really depends on your household needs. To figure this out you can do a few simple calculations. If you are heating water for showering and other such uses like laundry than a smaller heater is probably the way to go. The space that the unit takes up in your home will also determine the size. If you are trying to heat a large amount of water you will most likely need a larger sized unit.