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 heater closet size.
What size tankless water heater depends on your gpm at peak hot water demand.
I live in boston so my groundwater temperature is around 47 f.
In fact it is the most important part of choosing a new unit for your home.
Electric units have measurements in the 10 inch high to 7 inch.
The international residential code irc specifically bans a storage closet as a location for a gas water heater.
Traditional water heaters can take up to 16 square feet of valuable floor space.
And your temperature rise which is determined by your incoming water temperature subtracted from your hot water setting.
Size matters when it comes to your tankless water heater.
Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand.
As an example i will show you what came out for me.
Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate.
Determine the mounting space tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.