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heat exchanger

Weezbo Member Posts: 6,232
check at Flat Plate on the internet ..it is a simple program.

Taco has a X block. it is like the RMB all in one package with a "Brain' .

it is a product of choice with me...on certain size systems within certain parameters....once again Flat-Plate is the simplest of programs to utilize...


    MRRADIANT Member Posts: 2

    I have a 10 zone system consisting of 7 zones radiant, 2 dhw tanks, and 1 hot water coil needing glycol to prevent freezing. I would like prefer not to mix glycol with the whole system for the sake of protecting one small zone from freezing, has anyone tried to isolate a zone with a heat exchanger for this purpose? This would allow me to cryotek one zone. Any thoughts, good or bad idea
  • hot_rod
    hot_rod Member Posts: 22,103
    Yes, remember you will need

    another expansion tank, circulator and iso flanges, relief valve, air purger, heat exchanger and maybe a low water cutoff in the event of a leak. Add up the cost difference, parts and labor you may be better off with glycol in the whole system.

    Johnstone Supply has a special on the Taco Mix Blocks, just under a grand. That would be a simple way to accomplish this and get reset control.

    hot rod
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
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