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View Full Version : Can Thermostatic Mixing Valve be revesed?


TCCIOWA
Mar 7, 2012, 01:30 PM
I would like to control the flow of hot water to the dishwasher.
I want to drain the initial cold water and send the hot water when it gets hot enhough through to the dishwasher.
Can that be done with standard Thermostatic Mixing Valve?

ballengerb1
Mar 7, 2012, 02:18 PM
No that valve is to prevent scalding. Watts and other make a hot water recycling system that might do what you need. Here is one by D'Mand but its pricey Metlund D'MAND Systems (http://www.solardirect.com/water-heaters/instant/metlund/metlund.htm)

ma0641
Mar 7, 2012, 03:37 PM
Why not run HW to the DW all the time? It helps preheat the DW and keeps the wash temp up. Reducing temp for a DW is not a good way to save energy costs.

ballengerb1
Mar 7, 2012, 03:39 PM
Ma, I don't think you read this correctly. TCC wants only hot water with no initial cold water which normally lays in the pipe.

ma0641
Mar 7, 2012, 06:03 PM
Must be a long run, mine is hot within30 secs and the heater coil does the rest.