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Old 09-17-2021, 03:26 PM   #1
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Hot water on or off?

What’s the general consensus on leaving hot water tanks on or off? If your somewhere for a month or longer, plugged into elec; is it better to just leave them on all the time; or do they last longer is only turned on prior to being needed? 🤷*♀️
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Old 09-17-2021, 03:31 PM   #2
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Ours stays on. No need to turn it off and on and use when needed.
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Old 09-17-2021, 03:34 PM   #3
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Ours is on all the time we are parked.
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Old 09-17-2021, 03:34 PM   #4
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I have an aquahot system, so running down the road the engine coolant heats the water so you get hot water with everything off. Once I plug in to 50 amp I turn the switch to electric heat and just leave it on. If I require longer term hot water, turn it to diesel until the demand is over, then back to electric and leave it on until I unplug. Hope this helps.
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Old 09-17-2021, 03:39 PM   #5
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We have the oasis system and it will run the summer loop circulating pump anytime the boiler is at temperature. The pump is very expensive and difficult to replace.....so I only turn it on for showers, and then back off again. This minimizes the time the pump runs helping it last years instead of months.
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Old 09-17-2021, 03:55 PM   #6
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Originally Posted by marycontrary View Post
What’s the general consensus on leaving hot water tanks on or off? If your somewhere for a month or longer, plugged into elec; is it better to just leave them on all the time; or do they last longer is only turned on prior to being needed? 🤷*♀️


Leave electric on while your camping. It should last years and years long as you don’t turn on empty. Mines 14 years old .
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Old 09-18-2021, 02:13 PM   #7
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We leave the AC to the water heater on all the time when connected to shore power. Takes too long to heat when we need it!

We also turn on the propane to the heater about 30 minutes before taking showers. This lets us take longer showers before running out of hot water!
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Old 09-18-2021, 02:19 PM   #8
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Quote:
Originally Posted by marycontrary View Post
What’s the general consensus on leaving hot water tanks on or off? If your somewhere for a month or longer, plugged into elec; is it better to just leave them on all the time; or do they last longer is only turned on prior to being needed? 🤷*♀️
Assuming you are talking about the electrical water heater instead of the gas side. What kind of electrical service do you have coming to you? If we are in a park where we only have 30 amp, it is off until we need it, especially if it is 95degrees outside and we need to run the AC.
If we are in a 50 amp site, then we generally turn it on 2-3 hours prior to needing it.
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Old 09-18-2021, 05:12 PM   #9
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Expansion and contraction is hard on any vessel. Leave it on
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Old 09-18-2021, 06:55 PM   #10
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Whether it was our propane/electric combo tank or our AquaHot, the electric was always on. Used the propane or diesel option to boost heating when higher demand was needed.
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Old 09-19-2021, 08:45 AM   #11
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We have ours on all the time.
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Old 09-19-2021, 10:06 AM   #12
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Expansion and contraction is hard on any vessel. Leave it on
That's what I've always thought as well!

In cold weather, I always heat my Aqua Hot tank slowly, either with engine coolant, or electric element, before firing up the diesel burner.
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Old 09-19-2021, 07:39 PM   #13
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I have a demand water heater, I routinely turn it off when we go to bed along with the supply water… I rather not wake up to surprises.
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Old 09-19-2021, 07:48 PM   #14
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RV is just a house on wheels............

How do you use your residential water heater?



As for 'surprises'
We only use the fresh water tank & pump
Easy to flip switch off before leaving RV or going to bed
If pump short cycles....time to investigate and find the leak
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