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Thread: heyward H series heater bypass adjustment instructions

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    heyward H series heater bypass adjustment instructions

    hi all , the manual doesn't show the adjustment procedures . can anyone help?? also the tech support folks say they don't use the temp rise method for setting up heaters as i have always done ....this h250 only has a 4* rise that is a waste of gas , in my opinion.......any advice?????? Thanks , Jack
    Doughboy 24ft AG
    1.5 HP pump, Sand Filter
    15,000 gallons

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: heyward H series heater bypass adjustment instructions

    Welcome to TFP!

    The bypass should not need adjusting, they either work or they don't work.

    Heaters are most efficient when the flow rate is very high and temperature gain is very low. Higher temperature gains means lower heat transfer efficiency. Now, in practice, you can only get the flow rate so high before you risk damaging the heat exchanger, so it is a balancing act between higher flow to improve efficiency and lower flow to protect the heat exchanger.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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