Chucknewell
New Member
Recently did a kitchen remodel and while the walls were open I piped in a hot water recirculation system. It's 3/4" out of the water heater and into the attic. About half way to the kitchen it branches to the bathrooms (capped, not connected yet) and is reduced to 1/2" for the remaining 20' or so to the kitchen. It then loops under the sink, return on the bottom and is 1/2" line back to the water heater. All pipes are insulated. At the water heater is a Grundfos circulator and flo-check valve (horizontal install) just before the line enters the tank at the bottom drain port (tee'd). It all works fine except it seems to be circulating on its own. The hot water out pipe is always hot and the return line is always warm. I've tested the circulator but waven't wired it up yet so it can't be kicking on. Do I need to bring the hot water out line below the drain level to stop the gravity flow?
Chuck
Chuck
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