Tankless Water Heater Size Requirements

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.

Tankless water heater size requirements. How to determine the required size of a tankless hot water heater. Gallons per minute gpm is the key when it comes to sizing tankless water heaters. Simply locate the appropriate water heater sizes on ecomfort using your information. Your tankless water heater will need to be able to provide a 60 deg.

Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. The answer is simple. The best gas option in this case would probably be rinnai v series. Then add up their flow rates gallons per minute.

How to select the right size tankless water heater. Measure your cold water temperature. Determine the mounting space. Determine your water flow rates.

Temperature rise at 3 gpm. Remember the maximum flow rate that manufacturers mention in the description is not what you ll get at your place. Determine the maximum number of devices you want to run and their total flow rate. 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.

You ll need a tankless water heater that can provide a temperature rise of 50 f for about 6 gallons of water per minute.