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Old 02-13-2011, 07:55 PM   #1
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Does engine coolant heat the hot water tank?

I noticed while reading the manual on the hot water tank of our new Georgetown that the tank may have a "loop" of pipe running through it which would allow the engine coolant to heat the hot water tank while traveling. Does anyone know if this is the case with the Georgetown units?

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Old 02-13-2011, 08:12 PM   #2
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Yes, if your setup for it. I can't remember what it is called but it is a feature.
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Old 02-14-2011, 09:22 AM   #3
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This is called MotorAide, and I have had it on many motorhomes...the coolant from the engine is routed through the hot water heater and it heats the water in the tank..when you reach your destination, you have hot water immediatley. It is a nice feature and as far as I know none of the Georgetown units have it.
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Old 02-14-2011, 09:38 AM   #4
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Must be something new they're offering. I don't see it on the website under the Options for the Georgetown Units.
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Old 02-14-2011, 10:22 AM   #5
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I could be wrong.
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Old 02-14-2011, 10:38 AM   #6
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I think I'd elect not to have that option. You'd be heating your potable water with a poisonous liquid.
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Old 02-14-2011, 11:17 AM   #7
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No you are not, it works like a heat exchanger and is perfectly safe. I am still alive and I have had this feature for years on other units. The water heater has the loop in it but Forest River does not run the lines to hook it up...guess that saves a couple of bucks...
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Old 02-14-2011, 12:00 PM   #8
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Quote:
Originally Posted by M109Rrider View Post
I think I'd elect not to have that option. You'd be heating your potable water with a poisonous liquid.
I don't have a horse in this race, but I have to agree with M109Rider on that. 1 little pin hole or bad fitting could contaminate your hot water supply. Hopefully someone could smell the antifreeze if that happened and take action before washing your dishes or taking a shower, but it just doesn't seem like a good idea.
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Old 02-14-2011, 02:02 PM   #9
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After almost 20 years in the Navy I am unduly familiar with how a heat exchanger works. If it's a straight coolant to potable water heat exchanger it's not worth the liability to me. If it's common and well liked by MC owners then have at. It just struck me odd and goes against everything I've been taught as a shipboard engineer. Honestly I'm amazed it's even legal.
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Old 02-14-2011, 08:16 PM   #10
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Not possible. The way the heaters are built there is no way for antifreeze to enter the acutal water supply......remember alum. does not rust and the antifreeze travels in and out in it's own tube. Your chances of an auto accident or winning the lottery are much better than dying from your water heater contaminated with anti freeze.. if it was available, I would pay to have it. Remember, it is a heat exchanger technology, not a direct insertion of anti freeze into the water heater.
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