Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand.
Tankless water heater closet size.
Size matters when it comes to your tankless water heater.
As an example i will show you what came out for me.
Determine the mounting space tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.
I live in boston so my groundwater temperature is around 47 f.
Yes a gas water heater can be installed in a closet as long as the closet is not used for storage.
What size tankless water heater depends on your gpm at peak hot water demand.
Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate.
In fact it is the most important part of choosing a new unit for your home.
And your temperature rise which is determined by your incoming water temperature subtracted from your hot water setting.
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.
Tankless water heaters are about the size of a carry on suitcase and can be installed on virtually any wall inside or outside of your home.
Electric units have measurements in the 10 inch high to 7 inch.