Tankless Gas Water Heater Sizes

You ll need to be able to heat at least 5 2 gallons of water.

Tankless gas water heater sizes.

Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. How to determine the required size of a tankless hot water heater. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.

Measure your cold water temperature. Use our handy calculator to determine your needed flow rate and temperature rise then find models that match your needs. Rinnai super high efficiency plus 9 8 gpm indoor natural gas tankless water heater. Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need.

Rinnai tankless water heaters are designed to provide maximum performance and efficiency using either a 3 4 or 1 2 gas line as long as sufficient gas flow is available. Choose the right tankless electric water heater for you. Determine the mounting space. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.

Just follow the three simple steps below to choose the right model and size you need. The right size is a tankless water heater that can heat enough gallons of water to a specific temperature per minute to keep up with the demand. So you ll need a tankless water heater that can produce at least a 60 degree rise in temperature at 5 2 gallons per minute. Since tankless water heaters supply endless hot water you don t have to worry about capacity but instead think in terms of water flow rate.

You ll need to raise the incoming water temperature from 40 degrees to 105. Determine your water flow rates. Simply locate the appropriate water heater sizes on ecomfort using your information.