Tankless Water Heater Gas Supply Line Size

What size gas line will i need for my tankless water heater.

Tankless water heater gas supply line size.

This guide outlines a typical gas tankless water heater installation with easily available tools and materials. The gas line size will depend on btu rating of the water heater the other gas appliances and where they are installed on each branch from the meter and regulator. The longest length method or the branch length method. Tankless water heaters are a compact efficient way to supply hot water to your home.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. There are two methods for determining the required pipe size. 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. Whether gas or electric tankless water heaters heat water only as it is needed and may save up to 70 percent on a yearly heating bill.

Simply locate the appropriate water heater sizes on ecomfort using your information. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. Gallons per minute gpm is the key when it comes to sizing tankless water heaters. An undersized gas line can stress a tankless system and possibly reduce its lifespan all rinnai tankless water heaters are equipped with technology that safely ceases.