How to determine the required size of a tankless hot water heater.
Tankless water heater dimensions.
For example you might not be able to run more than one shower at a time without someone getting an arctic blast of cold water.
Gas tankless uef electric tankless uef residential boilers.
Icomm elite spec sheet.
Most rinnai tankless water heaters are only about the size of a rolling suitcase.
Size matters when it comes to your tankless water heater.
Icc building management system spec sheet.
As an example i will show you what came out for me.
Measure your cold water temperature.
And your temperature rise which is determined by your incoming water temperature subtracted from your hot water setting.
Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand.
Determine the mounting space.
Determine the maximum number of devices you want to run and their total flow rate.
The dimensions vary slightly based on the model you choose.
I live in boston so my groundwater temperature is around 47 f.
Determine your water flow rates.
Then add up their flow rates gallons per minute.
Not only are tankless water heaters more efficient they re also convenient for installation in small spaces.
How big is a tankless water heater.
Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.