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Old 05-02-2016, 07:47 PM   #1
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Supplemental Water Heating

I posted this on the RV Systems and Appliances forum but since there were no responses I thought I would try it here.

Anyone see a reason why I couldn't/shouldn't install something like this ([url=http://chronomiteproducts.com/chronomite-m-20l-120-volt/]Chronomite M-20L (120 Volt) - Chronomite Products - BuyAndLarge Inc) in my coach to supplement the hot water supply for the shower? This unit requires a 20 amp outlet, which I would need to confirm I have available. My water heater is a Suburban 6 gallon LPG/AC unit. The AC side is not working but I haven't yet figured out why not. I've replaced the electric heating element but there is no AC power to the connection. The 6 gallons is just adequate for me to shower, but not nearly so for my wife or three daughters.



I guess my question is whether the recovery capacity would improve much if the AC heating element were working in addition to the LPG, or could I add something like the product I referenced above? I don't know why the OEM used such a small water heater while the holding tanks are substantial; 130 gallon fresh, 64 gallon grey, 64 gallons black. TYIA


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Old 05-02-2016, 07:51 PM   #2
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Even our '02 Dutch Star had a 10 gallon WH. It had the motor aid, electrical and propane. In fact the '00 DSDP has a 6 gallon one and it was totally adequate for the two of us.
AquaHot was one of the biggies on my wish list when we got the present rig. Our AH has two 2000 watt electric elements and the 65,000 BTW burner. Even with both electric elements on it's possible to run out of hot water during one shower. Then I have to turn on the burner.
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Old 05-02-2016, 08:02 PM   #3
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If you have s Suburban wh, there is an on/off rocker switch on the lower left side of the unit. If it is off that may be the problem with the AC side. Do not turn it on without water in the heater unless you want to replace the elements again. Good luck. Military showers will make the water last longer.
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Old 05-02-2016, 08:03 PM   #4
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A assume you would plumb this in front of the hot water heater, that way if you didn't need it running the water heater would still function correctly.

See no reason it wouldn't work and the price seems reasonable.


Don't own a Country Coach but on my Monaco they installed a small relay that is activated by the 12 volt water heater switch that activates the 120 volt system. I assume that these systems are pretty much the same so you just need to track down the system. In my case the relay was mounted in a small electrical box behind my main panel. The power comes EMS system actually provides power to either the water heater or engine block heater, each with it's own relay that is controlled with a 12 volt switch.
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Old 05-02-2016, 09:30 PM   #5
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Quote:
Originally Posted by jacwjames View Post
A assume you would plumb this in front of the hot water heater, that way if you didn't need it running the water heater would still function correctly.

Yes, I was thinking I would plumb it in in front of the water heater. I suppose I will also have to make sure the electric unit can handle the water volume necessary.

Thanks for the heads up on the relay. I know there are a number of relays behind my electrical panel as well. I'll have to trace it out and see if a relay might be the culprit of the AC side not working.

Russ


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