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Thread: Can I use an in-ground heater for an above-ground pool?

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    Can I use an in-ground heater for an above-ground pool?

    I'm in the process of buying my first pool (just ordered today, in fact!) and I'm looking at heaters. I'm interested in this Raypak heater:

    http://www.poolsupplyworld.com/Raypa...ter/009216.htm

    It's 200,000 BTUs, but the price is still within my budget. The website lists this as being for in-ground pools though. Can I use it on my above-ground pool as well? Is there a difference in the way IG and AG heaters are configured?

    If this one won't work, can anyone recommend another heater brand or model that might be work nicely with the pool in the same price range or less?

    PS - New pool is a 24 ft round with a 54" wall (about 15,000 gallons). Thanks!
    Just bought first above-ground pool!
    24' x 54" round Matrix by Sharkline
    150 sq. ft. Pentair cartridge filter with 1 1/2 HP dual speed pump
    Looking into heaters now...
    Any help is appreciated!

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    Mod Squad jblizzle's Avatar
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    Re: Can I use an in-ground heater for an above-ground pool?

    There is no difference between in- and above-ground heaters that I can think of.
    You may need to run on high to have enough water flow for the heater, but maybe not.
    Jason, TFP Moderator
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    Mod Squad Bama Rambler's Avatar
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    Re: Can I use an in-ground heater for an above-ground pool?

    Not a problem using that heater on your pool. You may have to run the pump on high to get the required flow through it, but it'll work fine.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Re: Can I use an in-ground heater for an above-ground pool?

    Thank you!

    One last question... do you think 200,000 BTU's is too small for a 24' x 54" round? Now I'm reading through other threads and see people saying to go ahead and splurge for the 400,000 BTU unit since it will heat up the pool faster...
    Just bought first above-ground pool!
    24' x 54" round Matrix by Sharkline
    150 sq. ft. Pentair cartridge filter with 1 1/2 HP dual speed pump
    Looking into heaters now...
    Any help is appreciated!

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    JasonLion's Avatar
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    Re: Can I use an in-ground heater for an above-ground pool?

    200,000 BTU is large enough, but 400,000 BTU will heat the pool from cold in half the time. I recommend the larger heater if you are planning to heat the pool for things like a specific day or weekend. If you are maintaining temperature for weeks at a time it doesn't really make any difference.

    The larger heater requires a fairly high flow rate and you will want to use rigid PVC rather than hose between the heater output and the pool. PVC is recommended for the smaller heater, but is less critical.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    In the Industry

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    Re: Can I use an in-ground heater for an above-ground pool?

    On a 24' diameter a 200,000 btu will be more than adequate.
    20X40 30,000 gallon gunite pool

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