As an example i will show you what came out for me.
Tankless water heater dimensions.
How to select the right size tankless water heater.
In fact it is the most important part of choosing a new unit for your home.
Determine the maximum number of devices you want to run and their total flow rate.
Having a water heater that is too small will result in it not being able to produce enough hot water for your household demand.
Icomm elite spec sheet.
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.
Icc building management system spec sheet.
Then add up their flow rates gallons per minute.
And your temperature rise which is determined by your incoming water temperature subtracted from your hot water setting.
How big is a tankless water heater.
Determine your water flow rates.
How to determine the required size of a tankless hot water heater.
Measure your cold water temperature.
Gas tankless uef electric tankless uef residential boilers.
Determine the mounting space.
Most rinnai tankless water heaters are only about the size of a rolling suitcase.
I live in boston so my groundwater temperature is around 47 f.
The dimensions vary slightly based on the model you choose.
Size matters when it comes to your tankless water heater.