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Thread: Hayward H300 Conversion from Propane to NG

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    Join Date
    Jun 2013

    Hayward H300 Conversion from Propane to NG

    I have the option of buying a Hayward H300 at half price (2-3 years old, never used), however it is Propane and I need NG, does anyone know the conversion process and the approximate cost.
    Thanks in advance....
    Currently installing new pool into new home.
    16x32 Steel Walled, Vinyl, 4ft to 6ft depth
    Hayward SWG, Aqua 4 Plus
    Hayward 1.5 HP Pump
    Hayward Cartridge Filter
    Heater - Not Decided yet.

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    TFP Guide

    Join Date
    Jun 2012
    western NY

    Re: Hayward H300 Conversion from Propane to NG

    At minimum there is an orifice change that is required. Most likely though the gas valve needs to be updated as well. I would hazard a guess of $200-$300
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    In the Industry
    patrick3229's Avatar
    Join Date
    Feb 2012

    Re: Hayward H300 Conversion from Propane to NG

    The Hayward part # on the conversion kit if the heater is Electronic Ignition (digital display) is HAXCNK0010 and if it is a Milivolt (manual control knobs) then the part # is HAXCNK0002. The kit includes the gas valve and orifices and run about $250 online.

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