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Thread: Hayward heater under the deck

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    Join Date
    May 2015
    Brooklyn NY

    Hayward heater under the deck

    Hi all. I would like to buy a Hayward 100kbtu heater for my above ground pool. My pool is surrounder by deck. There is about 4 feet of space below the deck. The manual says not to put heater under the deck and the top should be unobstructed. Has anyone done this type of installation? How hot is the exhaust that blows out? Can I put a sheetmetal plate right below and to the side to block the exhaust from heating the bottom of deck boards and the pool wall? Any thoughts and advice is appreciated. Thank you
    Salt Water 8000 AGP 12' X 18' X 54" - Hayward S166T 16" Sand Filter w/ 1.5HP Power-Flo Pump - Hayward Aqua Trol RJ Salt Generator System

  2. Back To Top    #2
    Smartjack's Avatar
    Join Date
    May 2016
    Naperville, Il

    Re: Hayward heater under the deck

    I have the 300,000 BTU Hayward, and that unit gets HOT. There is no way I would mount that under a deck. There is also an exhaust on the top of that unit, which puts it over 4 feet. I don't know how much smaller the 100,000 unit is, but I would suggest not putting it under the deck.
    Bruce - (The SmartJack was an invention of mine, and became my nickname)
    Fox Pool 40x27 IG Vinyl, Lagoon Shape, 27,000 gallons, Hayward 300,000 BTU heater
    Hayward 1.5 HP, 2-Speed SuperPump, with Hayward C4025 Cartridge Filter
    Polaris C-310 ORP Controller, modified to pump Liquid Chlorine
    Hayward Phantom, and Aquabot Turbo T-Jet automatic pool cleaners, Taylor K-2006

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