What Size Tankless Water Heater Do I Need For A Washing Machine

If you want to upgrade your water heater size from 40 or 50 gallons storage water heater or replace it you won t necessarily need a big tankless water heater.

What size tankless water heater do i need for a washing machine. Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need. Washing machine average 1 5gpm flow rate yes. The first factor in choosing a tankless water heater is calculating the size of your hot water heater. If you do the math for 50 temperature rise you need approximately 25 000 btu s per hour per gpm of water required which doesn t take heater efficiency into account but gives a good idea of the size of high efficiency heater needed.

Use our handy calculator to determine your needed flow rate and temperature rise then find models that match your needs. Simply locate the appropriate water heater sizes on ecomfort using your information. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. How to size a tankless water heater.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. If you were running a shower and the washing machine at the same time you would need 4 5 gallons per minute from the water heater. Washing machine and dishwasher 4 5 568 40 151 home with 4 bedrooms washing machine and dishwasher access this document. Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired.

Tankless water heaters do not store hot water. Instead they heat it as it s needed. For example if you are running 2 showers at the same time you will need 5 gallons of hot water per minute from the tankless water heater. How to choose a natural gas water heater tank size in choosing a new natural gas water heater you need to consider the size of the tank.

Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.