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new gas tankless water heater

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  • new gas tankless water heater

    I want to install a new tankless (outdoor) gas water heater. In addition to providing water to the heater and new hot water out, I will have to divert a gas line from where the old water heater was inside the house to the new outside position about 20 feet away.

    I was looking at using pex for the water and copper for the gas with compression (gator bite style) fittings as I do not know how to solder.

    Any advice from the pros?

    The city I live in has only the UPC 2009 in effect for this.

  • #2
    Re: new gas tankless water heater

    First I recommend you really do some research to make sure you want a tankless. They are not for everyone so do your due diligence. Secondly, I could not find an IAPMO listing for gatorBITE fittings so make sure they are legal. Even more important, make sure they are legal for gas but I doubt any push-fitting is legal for gas. Finally, size your new gas line before you invest a lot of time even considering a tankless.

    "Somewhere a Village is Missing Twelve Idiots!" - Casey Anthony

    I never lost a cent on the jobs I didn't get!


    • #3
      Re: new gas tankless water heater

      Gatorbites are definitely rated for water only... DO NOT USE ON GAS!!!
      Poor Planning On Your Part Does Not Constitute An Emergency On My Part!!
      You can fire me...but you can't tell me what to do!



      • #4
        Re: new gas tankless water heater

        pex is not to be exposed to sunlight/ uv rays.

        a tankless is not all it's cracked up to be. there are literally 1000's of post on tankless and the vast majority are why not to have one. i doubt you'll ever see a payback with one. i'm saving $5.00 a month and have had it for 2 years now. i installed it for an experiment and just last week had to install a circulating pump on demand to try and speed up the wait time / loss of water to get it around the house.

        gator fittings are not for gas

        do your homework and read some old post. lots to learn.

        phoebe it is


        • #5
          Re: new gas tankless water heater

          The place is a duplex with 2 small 1 bedroom apartments and the previous owner installed a 50 gallon gas water heater in the corner of the kitchen vented through the ceiling. Not only is the current heater too big for such a small apartment, but the space in the kitchen could be much better used for cabinets or..... well.... anything! The venting is also an eyesore and was not properly done as you can see buckling and cracks where the vent pipe passes though the ceiling into the attic.

          There is literally no other place to put a gas water heater in this building. I was trying to avoid switching to an electric one as none of them are energy star and all the rebates and incentives require that certification.

          Since any indoor gas heater (including a tankless) would still require venting, I was thinking that by getting the outdoor GE model that I could solve all the issues at once, but from what I read here today it seems like I will have to get a professional to move the gas line for me as well as direct electrical wire the unit.

          Thanks for the info about PEX and UV/direct sunlight. That info was nowhere on the buyers guides!