Simple Calculation for Determining Tankless Water Heater Size
To determine the right size tankless water heater for your home or business, you can use a straightforward calculation: Determine Your Desired Flow Rate : Add up the GPM of each fixture you expect to use at the same time. Example: 1 shower (2.5 GPM) + 1 dishwasher (1.5 GPM) = 4 GPM. Calculate Temperature Rise : Subtract the incoming water temperature from the desired hot water temperature. Example: Desired temperature (120°F) – Incoming water temperature (40°F) = 80°F. Match to Heater Output : Once you know the flow rate and temperature rise, match these numbers to a tankless water heater model capable of meeting those requirements. You can also use online tankless water heater size calculators. Consulting a local plumbing company can also help ensure that your system is sized properly and meets your household’s needs. Originally published here : https://www.whiteplumbingcompany.com/a-complete-sizing-guide-for-the-ideal-tankless-water-heater/