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Old 12-29-2017, 09:25 AM   #1
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Ely , Minnesota
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Posts: 52
Hot water heater

Question,,,,apart from propane consumption, does it do any harm to my hot water heater to leave it on all the time? We are volunteering in a park where propane is provided for us. It is nice to have hot water on demand, but I just wondered if this will damage my heater by leaving it on all the time.Thanks...
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Old 12-29-2017, 10:12 AM   #2
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2007 22' International CCD
Corona , California
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The water heater has a thermostat that controls the temperature of the water. As long as it is operating properly, there should be no issue leaving it on for extended periods.

You would want to shut it down at intervals and flush any sediment out of it, and restore the air bubble that reduces surge in your water system. (or do what many have done and install a surge tank somewhere in the system.)

The only thing I did not like about the standard AS water heater was its tendency to come on and noisily heat water in the middle of the night. Since our heater is located in the bottom of the wardrobe closet and is right next to the head of our front bed, the noise used to wake me up occasionally. Because we tend to camp out in cold weather, we could not turn it off at night under freezing conditions.

To solve that, reduce the weight forward of the axles, and provide massive amounts of hot water so my wife can enjoy "hotel showers" on the road in the Airstream, we installed a PrecisionTemp 500-series tankless water heater. That unit is essentially silent unless we are actively using hot water, or if it gets below freezing, and it has to protect itself from freezing up.

Not a cheap change, but wife is happy, so it's also makes very little noise when heating water, or at least the sound of the shower and sometimes the water pump totally drowns out the sound of the little fan that circulates the air for the burner...
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
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Old 12-30-2017, 11:08 PM   #3
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You will get a lot of mineral buildup in the WH... flush regular (every other month drain the WH... using proper steps.).. I neglected to do this.. and so, have done my Mea Culpa and deserving penance... Flushed then filled with 50-50 white vinegar and water.. heat for 3 hours... allow to COOL... flush with clean water... I got a lot out by running a small hose inside.. and there was LOTS of stuff coming out... for over 10 minutes..
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