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View Full Version : Elect. W/H Looped To Geothermal



neolitic
01-16-2010, 10:14 AM
A good customer had a geothermal
heat pump installed a couple years ago.
I just noticed that they plumbed
a loop to the electric water heater.
They replaced the drain cock with a
copper nipple when they looped in.
Am I missing something,or isn't this
setting up a situation for the early demise
of the water heater?
Looks like a brass nipple should have
been used for this.

Besides wanting to help out a good client,
I just had the heater put in 3 years ago
as part of a bath remodel I did for her
and I'm not up for any problems for my
warranty....especially since that plumber
retired last year.
TIA


EDIT TO ADD:
Geothermal guys are coming out next week.
They already told the customer, over the phone
that this dis-similar metals thing is an old wives tale,
so some sort of citation from a recognized
source would be nice if I'm right about this.

neolitic
01-17-2010, 02:32 PM
Just a bump.

Redwood
01-17-2010, 03:35 PM
Probably not if its a closed system.

neolitic
01-17-2010, 04:31 PM
Probably not if its a closed system.

Closed how?
I think they're using the heat pump
to pre heat for the W/H.