Tankless Water Heater Size Requirements

Gallons per minute gpm is the key when it comes to sizing tankless water heaters.

Tankless water heater size requirements.

How to determine the required size of a tankless hot water heater. 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. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. How to select the right size tankless water heater.

You may not need that big of a tankless water heater so make sure you read the whole article. Your tankless water heater will need to be able to provide a 60 deg. 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. Determine the maximum number of devices you want to run and their total flow rate. Simply locate the appropriate water heater sizes on ecomfort using your information. Determine the mounting space.

Determine your water flow rates. 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 heaters are much smaller than units with a storage tank allowing them to be wall mounted. A wide range of sizes and capacities of demand type water heaters are available so indeed it makes sense to look carefully at your requirements.

Measure your cold water temperature.