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Author:
HighAndDry (VA)
Greetings to Plbg.com experts,
I have replaced my Apollo heater with a new gas fired furnace. This leaves me with an Apollo natural gas hot water heater (about 2 years old) with a now unnecessary heating portion. I want to continue using the DHW ports and leave the heating ports disconnected. So far I have turned off the valves for the lines to my old heater and simply connected the two old heater lines together with a pex pipe just in case the valves were to be opened by mistake. I also have a diverter valve to help regulate the hot water when I had the hot water heater adjusted to max in the winter time.
I want to keep using the hot water heater for drinking water since it is fairly new. I also like to keep things as simple as possible. I may have to explain to someone what all of these extra pipes and valves are for over the phone when there is a problem in the future. I am also concerned about leaving this old loop to the heater in place with potentially stagnent water in it since the circulating pump in the old furnace has been removed.
I am currently in the process of removing old PB pipe and updating with pex. I do not have the hot water heater running at this moment. Since I have the plumbing ripped apart I would like to fix now if needed. Here are my questions:
1) Should I plug the old apollo heater lines at the hot water heater ports on the tank?
2) Should I remove the old diverter valve?
3) Leave well enough alone and do nothing.
Thanks in advance for any answers/suggestions!!!
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Author:
m & m (MD)
Is the space heating portion of the WH internally separate from the domestic?
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Author:
HighAndDry (VA)
m & m, Thanks for responding!!!
I would assume the two systems are connected internally inside the hot water heater somehow because there were not any other water connections to the old apollo furnace. Two pipes from/to the hot water heater and that was it. How else would you get water into the heat coil in the air handler box???
There are 4 ports on the unit. Two on the top are for house hold water... one for fresh in and one for hot out. Two are on the side of the tank... one marked "to" the heater and one for the "return" from the circulating pump.
Thanks
Edited 1 times.
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Author:
Paul48 (CT)
I'd disconnect and plug the heat ports , at the tank. Drain the loop to the old airhandler, and get rid of it.
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