Questions and Answers for Rinnai Super High Efficiency Plus 9 GPM Residential 160,000 BTU Natural Gas Interior Tankless Water Heater

A:  Hi John, the unit "can" work with a gas line as small as 1/2" depending on material, what gas firing appliances you have in the home and the distance it is from the appliance to the fixture. Please work with a licensed professional to ensure your units gas and water lines are sufficient for you unique application.

A:  Hi RonG, yes this unit will work in an altitude up to 10,200 ft.

A:  Hi, depending on the average ground water temperature it should be able to provide 2-3 showers running simultaneously with standard show heads. Standard show heads are about 2.5 GPMs any larger you will require proper sizing with your installer for your home.

A:  Hi AraC, the recess boxes are only created to be used with our exterior models. They are not designed to house an interior model.

A:  Hi Mark, Rinnai tankless water heaters were designed to be installed in many non conventional areas in your home including attics and crawl spaces. Please have a licensed professional ensure you have all the necessary connections and make sure they place a drip pan under the unit.