Tankless Water Heater Size Requirements

The best gas option in this case would probably be rinnai v series.

Tankless water heater size requirements.

Temperature rise at 3 gpm. Measure your cold water temperature. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. Gallons per minute gpm is the key when it comes to sizing tankless water heaters.

Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Remember the maximum flow rate that manufacturers mention in the description is not what you ll get at your place. 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.

Simply locate the appropriate water heater sizes on ecomfort using your information. 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. Determine your water flow rates.

Then add up their flow rates gallons per minute. 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. How to determine the required size of a tankless hot water heater. The answer is simple.

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