Improving Hot Water Distribution
My wife and I are buying a house that was built in 2007. It has some issues, such as this one noted by the inspector:
“The thermostat is set to higher than usual setting to provide 120 F water to kitchen sink. The water pipes are buried in the slab, which serve as a heat sink. Even after several minutes, the water at the sink barely gets hot, so a lot of water is wasted. There is a hot water recirculation system in the Owner’s Bathroom, close to the water heater. Water circulation systems are put at the plumbing fixture, usually a sink, furthest away from the water heater, which in this case would be either bathroom at the front of the house. Water may be recirculating, but it’s benefitting only the Owner’s Bedroom. A plumber can put a hot water circulation control valve on either of the bathroom sinks.”
The owner’s bathroom fixtures are actually in the room closest to the water heater. So, should I replace the current valve, which is located under one of the vanities, with a recirculating pump (see picture), or would it be better to install the pump at the hot water heater (maybe with remote sensors) and simply “push” hot water into the system as needed?
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