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Dual use water heater / hydronic install (PAH)

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hot_rod
hot_rod Member Posts: 22,198
in THE MAIN WALL
Never said I didn't condone dual use, just that it must have a Flat Plate HX to isolate the fluids. Every time hot water is used in this home, a flow is generated through the Flat Plate HX too. When at rest, gravity circulation takes over on the potable side of the FP HX. No flow check.

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