What type of fuel do tankless water heaters use?

The 3 most common fuel sources for tankless water heaters are electricity, natural gas and propane. An electric tankless water heater is designed completely different than gas models. However, a gas unit is designed to burn either natural gas OR propane.

What size propane line do I need for a tankless water heater?

Rinnai Tankless Water Heaters typically require a 3/4″ gas line to provide a sufficient gas supply to the unit’s burner. However, if there is sufficient pressure and the gas line is short enough, there are some cases where a 1/2″ gas line can be used, which is the most common size used in the United States and Canada.

Does a tankless water heater need a dedicated gas line?

In many cases, there’s no need to run gas line all the way around your home to reach a tankless water heater. By installing the tankless unit on an exterior wall or even outside, builders can allow for shorter gas line runs and easier venting.

Does Rinnai make an electric water heater?

No, Rinnai does not make electric tankless water heaters. As a company, they feel that the drawbacks to electric heaters (cost per BTU, energy draw, etc.) aren’t worth the manufacturer’s time or their customers’ frustrations.

What is an instant hot water heater?

Tankless water heaters-also called instantaneous, continuous flow, inline, flash, on-demand, or instant-on water heaters are water heaters that instantly heat water as it flows through the device, and do not retain any water internally except for what is in the heat exchanger coil.

What is a propane water heater?

Propane water heaters, on the other hand, uses propane gas to heat water. A propane water heater consists of a propane tank where the propane gas is stored, a burner and a pilot light. The burner is located below the water tank and the water is heated by turning on the pilot light which will then light up the propane gas.