Recently we added a 600 SF second floor addition to a ranch home that has hot water on demand on the first floor. This was achieved by adding a recirculating pump and loop. Now, our client is a bit miffed that he doesn’t have the instant hot water upstairs in their new master suite. Does anyone know how this may be achieved at this point or could even offer any advise as to what this might look like in theory on paper. Any comments or suggestions would be greatly appreciated!
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Replies
Jt,
I know how to do it but trying to tell you may not be as easy! Also it varies based on the plumbing set up in the master suite. But if you did it once you can't duplicate it? Well here goes, you have to find a point at or close to the master suite where you can joint a water line to the existing hot water line going to the master suite. This new line goes back to the water heater to the cold water side. Usually the pump is installed at the water heater or close too. Whether or not you can get to the line and run another line back to the water heater is a question only you can answer as I can't see it. Old houses (where I work the most) used to use a chase way up to the upstairs so its really pretty easy. Newer homes just run it through the walls. But hey, drywall is cheap! DanT
Here is a link to a product that might be of interest. I personally don't like the idea of this system but supposedly the small amount of hot water in the cold line is something a user would get accustomed to at the tap. What I would worry about is the stress on the china of the toilet tank when a shot of hot water comes into it which could be substantial if you have a long run of 3/4 or 1" pipe back to the HWT. http://www.chilipepperapp.com/cwrcs.htm I don't know if Grundfoss still has a similiar product but they did a couple years ago.