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Old 04-03-2012, 01:38 AM   #11
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Originally Posted by sherdep View Post
...FYI do not run the gas and electric at the same time unless you are taking a shower or have taken a shower and are looking for a quick recovery time.
I'm with pg_rider - what's up with that? We routinely engage both gas and electric to run our Suburban HW heater/tank. In fact, the gas part of the system will not normally come into play unless the tank is drained in short order i.e., having a shower.

???
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Old 04-03-2012, 06:54 AM   #12
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Originally Posted by pg_rider View Post
Uh oh -- why is that? This past weekend I ran both electric and propane water heaters the whole weekend. Is that a bad idea? If so, why?
i should have re-phrased that part - its personal preference - I only use the gas side when I am doing showers back to back for quick recovery

my reasoning is why burn up the gas propane when you have electric

Wen I had my walk thru I was told to use both for quick recovery but shouldnt leave the gas on while on electric - I have found out diffrently here so as my preference I only ue the gas to get a quick recovery time for hot water.
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Old 04-03-2012, 07:07 AM   #13
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I'm with pg_rider - what's up with that? We routinely engage both gas and electric to run our Suburban HW heater/tank. In fact, the gas part of the system will not normally come into play unless the tank is drained in short order i.e., having a shower.

???
whats up with that - see explination above
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Old 04-03-2012, 08:21 AM   #14
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It's a Suburban that was winterized but I've switched the bypass and water is going into the tank. I'm not getting any hot water because it's not staying on long enough.It's gas only.
Steve,

Check the bypass valve again. It is the one that connects the cold water and the hot water lines together. Opening the cold water and hot water valves, but not turning the bypass valve will cause cold water to mix with the hot water. (see photo)

Once you are sure that the hot and cold valves are open and the bypass is closed. we can move on to why the heater is not making hot water.
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Old 04-03-2012, 08:29 AM   #15
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As to using gas and electric together; there is no problem doing so.
Gas should not light unless the internal temperature of the heater drops below it's low limit. You would need to use a fair amount of water to add that much cold water to the system to trigger the heater to turn on.

Once low limit is reached, gas and electric will turn on together to bring the water temp back up to the high limit (or at least work together to try and manage it - like during a LONG shower).
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Old 04-03-2012, 10:49 PM   #16
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Once low limit is reached, gas and electric will turn on together to bring the water temp back up to the high limit (or at least work together to try and manage it - like during a LONG shower).
DW consistently attains the low limit threshold so having the electric and gas work together for recovery is somewhat of a necessity.
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Old 04-03-2012, 11:00 PM   #17
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Originally Posted by herk7769

Steve,

Check the bypass valve again. It is the one that connects the cold water and the hot water lines together. Opening the cold water and hot water valves, but not turning the bypass valve will cause cold water to mix with the hot water. (see photo)

Once you are sure that the hot and cold valves are open and the bypass is closed. we can move on to why the heater is not making hot water.
How do you set up the Hwh to use both gas & electric at the same time? I didn't know you could do this for when taking showers. Wished I knew this sooner. Thanks Annamarie
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Old 04-04-2012, 07:44 AM   #18
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How do you set up the Hwh to use both gas & electric at the same time? I didn't know you could do this for when taking showers. Wished I knew this sooner. Thanks Annamarie
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The normal switch in the camper works only the propane function of the water heater. The 120 VAC "shore power" part of the heater is outside under the cover. It may have a safety cotter key pinning it "OFF" since putting power to it without water in it will destroy the heater element.

In the photo, the switch is ON and the anode is OUT. There had better be NO Shore Power or Generator providing 120 VAC to the camper or this heater element is toast.
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Old 04-04-2012, 06:21 PM   #19
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I wish my tank looked like that. I can't find an on and off valve for either hot or cold water. I found the bypass valve for the tank and it's letting water into the tank. I should have gotten a walk through from the previous owner.
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Old 04-04-2012, 06:35 PM   #20
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It would help if you took pictures in front of hw heater and from behind if possible.
have you tried calling the previous owner ?
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