Robert Jones Posted September 3, 2011 Report Share Posted September 3, 2011 This home was built in 1999. I can't say that i have ever seen a setup like this before. Two water tanks, both being used, but the handle for the heater on the left is in the off position and the tank is still full of water. What am I missing? Click to Enlarge 40.12 KB Click to Enlarge 34.95 KB Quote Link to comment Share on other sites More sharing options...
Erby Posted September 4, 2011 Report Share Posted September 4, 2011 Nobody ever drained the off tank or back pressure through the pipe out to the house? Not a clear enough picture of the piping to determine parallel or series piping. Quote Link to comment Share on other sites More sharing options...
hausdok Posted September 4, 2011 Report Share Posted September 4, 2011 You didn't miss anything; with that handle off there isn't any water flowing into that tank. It will still fill by gravity as water flows into the system from the other tank but the water they are using is coming from the right-hand tank only. If I've got it saved on my harddrive, I'll send you a paper I downloaded from the Rheem site that explains the advantages and disadvantages of parralel and series tank installation and shows how each is done. ONE TEAM - ONE FIGHT!!! Mike Quote Link to comment Share on other sites More sharing options...
hausdok Posted September 4, 2011 Report Share Posted September 4, 2011 I didn't have it on my box but I found the link to it: Click here! OT -OF!!! M. Quote Link to comment Share on other sites More sharing options...
John Kogel Posted September 4, 2011 Report Share Posted September 4, 2011 I had one last year, a 60 gallon storage tank water heater and a gas on-demand water heater, in parallel. Just one couple in the house. The demand water heater was turned off, and they were using only the big old tank heater. That was a head-scratcher. [] Quote Link to comment Share on other sites More sharing options...
Robert Jones Posted September 4, 2011 Author Report Share Posted September 4, 2011 Thanks guys and thanks for the link Mike. Quote Link to comment Share on other sites More sharing options...
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