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  1. Replies
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    You need to add antifreeze (at least here in...

    You need to add antifreeze (at least here in Canada). We typically buy antifreeze with prohibitors in it.
    Propylene glycol is food safe but is thick and increases pumping costs.
    Methanol is...
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    In residential systems like this the circulation...

    In residential systems like this the circulation pump pack comes with purge ports. These ports isolate the heat pump and provide means to connect the ground loop to a purge cart. Essentially it is a...
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