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03-11-2013, 09:47 PM
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#1
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Junior Member
Join Date: Jan 2013
Posts: 10
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Backfeeding water heater
My wife and I are currently full timing in a set location. We also have a 12x24 building we're parked by. Inside the building, we have full size appliances including a water heater. I have been rolling the possibilities of back feeding the water heater with the full size water heater for more bathing capacity etc. Have any of you done this before? I realize that I could tap into the hot water lines at any point but I'd rather connect to the drain plug on the water heater so as not to damage the insulation and sealed bottom. Let me hear some thoughts.
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03-11-2013, 10:14 PM
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#2
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,486
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Can't think of any reason why it would not work.
Cold inlet turned off at the tank, hot water from building supplied to drain, however you would have to leave the RV hot water heater turned on or you'll be running taps in the RV till the tank ( 6 or 10 gal ) gets filled with hot water from the building. Insulate the supply hose well or there could be a sudden shock when the cool water from the hose comes into the shower. 
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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03-12-2013, 06:27 AM
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#3
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Junior Member
Join Date: Jan 2013
Posts: 10
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That was my idea. I would leave the electric portion of my 6gal Atwood heater on.
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03-12-2013, 09:36 AM
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#4
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Senior Member
Winnebago Owners Club Freightliner Owners Club
Join Date: Oct 2009
Location: E WA or S TX
Posts: 4,058
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Be Careful HOT WATER can be dangerous! Use plumbing rated for temperature and pressure, not garden hose.
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04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat(RIP) 01 Z3
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03-12-2013, 09:45 AM
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#5
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Registered User
Join Date: Aug 2012
Location: The Land Of Oz RVM17
Posts: 1,592
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Quote:
Originally Posted by rgvtexan
Be Careful HOT WATER can be dangerous! Use plumbing rated for temperature and pressure, not garden hose.
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You can buy hot water rated garden hose at any good supply store. A little pricey but better hose for hot or cold use. 
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03-12-2013, 02:18 PM
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#6
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Member
Join Date: Jun 2012
Location: Canada
Posts: 34
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My Dad has a household 30gal water heater connected to the trailer. His is spliced into the water lines, but the drain sounds like a good idea (easy to remove if ever required). He has also ran copper tubing (insulated), rated garden hose could work though. Good luck.
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03-12-2013, 08:34 PM
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#7
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Junior Member
Join Date: Jan 2013
Posts: 10
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I hooked it up to the drain today and shut off the cold water valve, isolating it from the cold water coming from the trailer. It's working great so far!
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03-13-2013, 07:37 AM
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#8
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,964
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American ingenuity at work!
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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