How many bypass valves do I need for a Grundfos hot water recirculating system?
I am considering purchasing and installing the Grundfos hot water recirculating system. I have a two-story house with a 50 gal water heater located in the basement. There are two bathrooms on the upper story, and a kitchen and bathroom on the main level. Do I need to install bypass valves in all four locations or just the bathrooms on the upper floor?
I would say that the answer to your question depends on how your plumbing trunk lines were run, but..
- it should be as simple as installing the valve at the furthest location from the water heater.
- This way, hot water will run through the trunk lines anytime the pump is activated -- running past each of the closer locations and resulting in short wait times for hot water anywhere.
- You will also not waste any water during the wait.
I recently installed this type of pump as part of a green remodel/addition to a one-story home in Winter Park, FL.
We created a split plan, by adding a master suite to the far side of the home (furthest from the existing baths). This resulted in a long wait time for hot water and the hot water recirculating pump resolved the issue.
I hope this helps.
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