|Posted by John Scates on February 15, 19101 at 10:52:43:|
|In response to Re: tandem water heaters - supply lines|
First, you need to determine if the cold water is being heated by a) hot water backflowing into the cold lines, or b) conduction/heating of the cold water pipes themselves, which then indirectly heat the cold water. You probably have a little of both, but without a full schematic of you piping system, I cannot say for sure.
2. A simpler solution than the check valve may be to simply add some length of pipe between the cold supply and the tanks. Remember, it does not have to be a straight-line. Would there be a problem running a length of cold water pipe up and down beside the water heaters several times so that there is enough length to isolate the tanks? This could remedy both sources a) and b) listed above. Just a thought...
Maybe someone else has some thoughts too.
- John Scates
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