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Old 04-01-2014, 06:00 PM   #15
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We use propane for its speed, and only turn it on when we need hot water (typically 1x-2x a day for 20 mins each time). Quite surprising that we can get a hot shower the next morning without running the propane heater after dinner clean up the night before. Well, that is in Texas for most of the year - probably won't work up north so well.
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Old 04-01-2014, 06:13 PM   #16
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My gas doesn't operate when the electric switch is on unless it's unplugged from power. How do you get them to both work at the same time?

Even tho I have both Gas and Electric on, when the shower is in use, the propane will light to aid in hot water recovery.

Maybe recovery is all in my head, but I figure if the electric is heating the water, it would need lass LPG run time to heat the water once again. Both are heating the water at the same time; seems logical it would heat faster.
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Old 04-02-2014, 11:12 AM   #17
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Even tho I have both Gas and Electric on, when the shower is in use, the propane will light to aid in hot water recovery.

Maybe recovery is all in my head, but I figure if the electric is heating the water, it would need lass LPG run time to heat the water once again. Both are heating the water at the same time; seems logical it would heat faster.
its certainly a sound theory. I've just never heard my propane kick in while attached to power.
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Old 04-02-2014, 11:40 AM   #18
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I was wondering about using gas and electric at the same time, have heard others talk about using it that way. Tried it on mine, when electric is on I get error red light when I try and turn on the propane heater, turn electric off and propane heater works fine. Wonder why that is, the way the system is wired maybe?
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Old 04-02-2014, 12:20 PM   #19
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I was wondering about using gas and electric at the same time, have heard others talk about using it that way. Tried it on mine, when electric is on I get error red light when I try and turn on the propane heater, turn electric off and propane heater works fine. Wonder why that is, the way the system is wired maybe?
Can't tell you why your WH won't work on electric and propane at the same time....mine works.

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Old 04-02-2014, 11:15 PM   #20
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Here is a hint when using Gas/Elect simultaneously.
The water temperature when using either Gas or Elect in most models of RV HWHs is controlled by non-adjustable (either on or off) Snap Stats. These are small thermostats about 1/2in in Dia and about 3/8in high exclusive of the push on connector terminals. On a typical RV HWH they are held in contact with the metal tank with a small (about 2in x 2in) piece of black foam tape. Normally the Gas stat will be on the gas burner side of the HWH and the elect stat on the elect heating element side of the HWH.
Carefully remove the tape and record the part numbers of the Gas “stat”. A wholesale electrical supplier or others should be able to cross-reference the “on” temperatures of each. Chose a new “GAS “stat (it’s a small dollar item) that turns “ON” about 10 degrees lower than the elect stat.
Now, when both Gas and Elect are turned “ON” , a small usage of hot water or normal heat loss will cause the elect stat to turn “ON” first (use the CG’s electricity not my propane). If the bulk temp. of the water continues to decrease then the Gas stat will turn “ON” for a very fast recovery time.
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Disclaimer- BE SAFE!- Be sure to de-energize the 120 VAC and the 12VDC before working on the HWH!
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Old 04-03-2014, 03:38 PM   #21
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That won't necessarily work, at least on mine when I arrive at camp with it cold I turn I my gas and it starts and then I turn on the electric and the gas quits. There has to be some other sensor or curcitry involved.
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Old 04-03-2014, 04:05 PM   #22
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dunno. mine works on both electric and gas simultaneously. always has. when I get to a campsite I turn the gas on to heat the water then I turn the electric heater on. regular hot water use the gas never comes on again as the electric keeps that water hot. only when using the shower will the gas light.
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Old 04-12-2014, 06:19 AM   #23
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We pay for elec. at our rv park. Is it cheaper to run h/w on elec or propane?
Thanks...
I am planing on pluming in a small 10 or 15 gallon. eclectic hot water heater,so that i can have the opportunity to switch between propane or elec.
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Old 04-12-2014, 07:31 AM   #24
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Our water heater actually has a little chart in the manual that shows recovery times using electric, propane, and both. It indicates the fastest recovery time is accomplished by turning both of them on.

With that being said, with the 10 gal. mixer, which provides the equivalent of 16 gal., we have never run out of hot water, so its a non-issue for us.
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Old 04-12-2014, 10:27 AM   #25
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My first post on this site.

A very interesting topic as I have always heard to never run the HWH on both electric and propane! I wish I could find that reference now because I don't remember why.

Like many, I typically run on electric when it's available and propane only if we're boondocking or for quick heat up. I also always shut the HWH off at night, if we are on propane, so I don't have to hear the blower go on.
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Old 04-12-2014, 11:30 AM   #26
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My first post on this site.

A very interesting topic as I have always heard to never run the HWH on both electric and propane! I wish I could find that reference now because I don't remember why.

Like many, I typically run on electric when it's available and propane only if we're boondocking or for quick heat up. I also always shut the HWH off at night, if we are on propane, so I don't have to hear the blower go on.
Yea im like 2ft from my neighbor in an rv park in Vegas and I hear his pop on all the time, do some older motor homes and trailers only have propane? Electric is free here do I don't know why he wouldn't use it, lol
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Old 04-12-2014, 11:38 AM   #27
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do some older motor homes and trailers only have propane?
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My 10 gal Suburban WH is propane only.
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Old 04-12-2014, 02:54 PM   #28
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with the 10 gal. mixer, which provides the equivalent of 16 gal..
What is a 10 gal. mixer?

Tim
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