Tankless Water Heater Gas Inlet Size

I live in boston so my groundwater temperature is around 47 f.

Tankless water heater gas inlet size.

Most demand water heaters are rated for a variety of inlet temperatures. Choose the right tankless electric water heater for you. I ve also briefly searched and learned that a re. Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need.

Tankless water heaters are intended to heat potable drinking water only and the inlet water to a tankless unit should not be pre heated. Simply locate the appropriate water heater sizes on ecomfort using your information. Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings. Rinnai tankless water heaters are designed to provide maximum performance and efficiency using either a 3 4 or 1 2 gas line as long as sufficient gas flow is available.

We have decided on purchasing the rinnai ru98i tankless water heater natural gas. Gas tankless water heaters are able to produce a larger temperature rise per gpm than electric models. Pipe size based on fixture units. Tankless water heater sizing guide for residential applications.

Our builder has told us that we have to have a 1 2 gas inlet. I checked another brand it too has a 3 4 inlet. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. However this model has a 3 4 inlet.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Just follow the three simple steps below to choose the right model and size you need. As an example i will show you what came out for me. What size gas line does a rinnai tankless water heater require.

Gas water heater electric water heater can be ganged for higher flow rate click any image to learn more and purchase that tankless water heater.