Tankless Water Heater Size Requirements

Determine your water flow rates.

Tankless water heater size requirements.

You may not need that big of a tankless water heater so make sure you read the whole article. How to determine the required size of a tankless hot water heater. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. Determine the mounting space.

Then add up their flow rates gallons per minute. The answer is simple. Determine the maximum number of devices you want to run and their total flow rate. Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.

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. You ll need a tankless water heater that can provide a temperature rise of 50 f for about 6 gallons of water per minute. Your tankless water heater will need to be able to provide a 60 deg.

Simply locate the appropriate water heater sizes on ecomfort using your information. Remember the maximum flow rate that manufacturers mention in the description is not what you ll get at your place. How to select the right size tankless water heater. Temperature rise at 3 gpm.

The lowest price you can get for the highest gpm is easily the takagi t h3 dv n that will give you a whopping 10 gpm.