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How to Install a Gas Tankless Water Heater: Step-by-Step Guide

Khem Bohora
Jul 23, 2016

Need water heater installation services? If you’re considering replacing your traditional water heater with a gas tankless water heater, this step-by-step guide can help. Many homeowners opt for the transition to a tankless water heater because traditional models often encounter issues such as overheating or obstructing the household water pipes with debris. At Everest Drain and Plumbing, our experienced Toronto plumbers can help you understand the steps involved in installing a gas tankless water heater.

Install a Gas Supply Line for a Tankless Water Heater

To begin, the initial step is to incorporate a T valve into the existing gas line. Following this, proceed by running a fresh corrugated stainless steel supply line specifically designated for the tankless water heater.

Connect Copper Waterlines to the Tankless Water Heater

You should then tie in new waterlines for the tankless water heater. Bell-hanger brackets are best to hold the pipes in place. It helps to prevent contact with the wall and to facilitate applying pipe insulation. Clean copper pipe joints and coat with flux before soldering.

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Build a Covered Platform and Position the Tankless Water Heater

Construct a covered vertical platform to position the tankless water heater. Its vent should clear the floor joists and pass through the outside wall. Hang the tankless water heater on the covered platform. Secure it by driving screws through the holes on its mounting bracket into the platform.

Connect Valves, Traps, and Supply Lines to the Tankless Water Heater

Connect the gas shut-off valve and sediment trap, and then attach the corrugated stainless steel supply line. Connect the water shutoff valves to the tankless water heater. It’s better to use bell-hangers to support the pipe runs.

Attach the Heater Vent Piping, Connectors, and Elbows

You should then apply heat-resistant silicon sealant to the heater vent. Slip on a connector and secure it with a hose clamp. Then add and secure sections of vent pipe as well as elbows. Bore through the outside wall at the center of the vent hole.

Then, install metal thimble through the outside wall and finish up remaining connections of the vents. Don’t forget to protect the pipes with insulation.

Call Everest Drain & Plumbing in Toronto now

If none of the previously mentioned methods prove effective in achieving the desired results, there’s no cause for concern. It’s the appropriate time to seek the assistance of experienced professionals based in Toronto. You can reach out to Everest Drain and Plumbing by dialing 416-383-7378, and our local team of highly skilled experts will be at your service.

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