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How do I install a tankless water heater?

By Bob Millaway, South Jersey Community Expert & REALTOR®

Installing a tankless water heater is more complex than a traditional tank unit. Mount the unit on a wall near your main gas line and water supply. Install a new gas line if the existing one is undersized, as tankless heaters require more gas. Connect the water supply lines and install a condensate drain line for the exhaust. Run the vent pipe through an exterior wall or roof. Electrical connections are needed for the control board. Due to gas and venting requirements, professional installation is strongly recommended.

Why It Matters

Tankless water heaters are more energy efficient and provide endless hot water, but proper installation is critical for safety and performance.

Related Questions

How do I shut off my main water valve? How do I unclog a toilet or drain? Why is my water pressure low? How do I know if I have a water leak? Should I repair or replace my water heater?

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