Tankless Water Heater Dimensions

Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate.

Tankless water heater dimensions.

Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home. Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired. 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. Some models can even be installed indoors or outdoors based on your needs.

Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need. Size matters when it comes to your tankless water heater. What size tankless water heater depends on your gpm at peak hot water demand. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.

The dimensions vary slightly based on the model you choose. Use our handy calculator to determine your needed flow rate and temperature rise then find models that match your needs. To learn find the right product go to our tankless water heaters page. Most rinnai tankless water heaters are only about the size of a rolling suitcase.

In fact it is the most important part of choosing a new unit for your home. As an example i will show you what came out for me. I live in boston so my groundwater temperature is around 47 f.