Gas heater and wall construction

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    • #278294
      Avatar photoMasterPlumbers

        We are trying to finish off a part of our basement. I was wondering if there is any regulation or a recommended distance to leave between the gas water heater and a wall that we are trying to build?

      • #298205
        Avatar photoSelgas

          Check with your local Plumbing/Gas Inspector for compliance clearances from combustable surfaces as they differ with each authority it would seem.

          Selgas Services Ltd
          Craftsman Gasfitters, Plumbers, Electrical Service Technicians

        • #298206
          Avatar photonicktheplumber

            Peter is correct to direct you to your local plumbing authority for the installation requirements. However, as far as I know, the codes do not specify any minimum distances of the water heater body from walls. Modern water heater tanks have insulated bodies that may be quite close to and even in contact with surrounding walls. So far as I knoew, the building codes are silent about this. However, the codes do specify such things as the construction of and the minimum clearances of the water heater vent pipes from combustible materials, the minimum elevation of the water heater firebox (18″) above a garage floor, the types of inlet valves (full-bore), and the location of unions (within 12″ of the heater), etc…


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