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Side Arm Heat Exchangers

Post in 'The Inglenook' started by zgambill, Oct 26, 2010.

  1. zgambill

    zgambill New Member

    Joined:
    Oct 26, 2010
    Messages:
    3
    Loc:
    North Carolina Mountains
    Has anyone had any experience with side arm heat exchangers for water heaters. I have a new Garn wood boiler (I LOVE IT) and have installed a side arm heat exchanger on the side of my 80 gal. electric water heater. I have connected the primary supply from my Garn to the top of the side arm heat exchanger. It only will get the top 30 to 40 gallons of water in the tank hot. It also has a very slow recovery time. Can anyone give suggestions for quicker recovery.

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  2. DaveH9

    DaveH9 Member

    Joined:
    Jun 11, 2009
    Messages:
    69
    Loc:
    NW CT
    i don't have experience with the side arm, but it seems to me that you could put a small pump on the dhw side and circulate the water thru the exchanger the opposite flow direction as the boiler water.

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