Tankless Water Heater Size Requirements

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

Tankless water heater size requirements.

Simply locate the appropriate water heater sizes on ecomfort using your information. Temperature rise at 3 gpm. Determine the maximum number of devices you want to run and their total flow rate. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.

How to select the right size tankless water heater. The best gas option in this case would probably be rinnai v series. Determine the mounting space. 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.

How to determine the required size of a tankless hot 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. Your tankless water heater will need to be able to provide a 60 deg. Measure your cold water temperature.

Gallons per minute gpm is the key when it comes to sizing tankless water heaters. The answer is simple. Remember the maximum flow rate that manufacturers mention in the description is not what you ll get at your place. Then add up their flow rates gallons per minute.

You may not need that big of a tankless water heater so make sure you read the whole article.