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Old 11-09-2013, 04:56 PM   #1
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Can't find water heater temp adjustment. 1994 Winnebago Adventurer.
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Old 11-09-2013, 05:03 PM   #2
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RV water heaters are controlled by a bimetallic switch. Unless you buy one with a different temperature range, you're pretty much stuck with the factory setting.
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Old 11-09-2013, 06:26 PM   #3
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I have not heard of this done on an RV but you can install a mixing valve near the heater. Hot and cold water are combined to give you the temp you desire at your hot faucets.
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Old 11-09-2013, 10:29 PM   #4
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Non-adjustable. But there have been some aftermarket thermostats that are adjustable.

Ken
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Old 11-09-2013, 10:47 PM   #5
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I have not heard of this done on an RV but you can install a mixing valve near the heater. Hot and cold water are combined to give you the temp you desire at your hot faucets.
Someone makes a water heater that does what you suggest. The basic temp is set high and then they mix cold to make the hot water last longer.
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Old 11-10-2013, 06:12 AM   #6
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Thanks for the input. I find it hard to believe the industry, in this instance, is this archaic.
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Old 11-10-2013, 06:38 AM   #7
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Thanks for the input. I find it hard to believe the industry, in this instance, is this archaic.
This is what I am talking of. Watts 0206045 - Build.com

Installing the little bugger can be a problem because of location but it will do the job for you. Watts has a long list of these things.

Happy trails,
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Old 11-10-2013, 06:38 AM   #8
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Thanks for the input. I find it hard to believe the industry, in this instance, is this archaic.
If the water temperature was lower, you would use more hot water and would probably run out quicker. By keeping the temp hot, you need to mix in more cold water, and as a result your hot water will last longer.
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Old 11-10-2013, 06:49 AM   #9
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You did not say what brand of hot water heater you have. On my Suburban the "buttons" had to be changed. The temp from the factory was luke warm so increased the temperature by changing the temperature sensor.
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Old 11-10-2013, 11:46 AM   #10
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If you have an Atwood hot water tank as I do in my 03 Adventurer you can replace the thermostat with an adjustable one in about 5 minutes.
there is a good video on Youtube that shows how to do it.
The part # is 93105. I bought it on Ebay
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Old 11-10-2013, 11:55 AM   #11
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I can see changing out the thermostatic switches if you've got small children, but for adults I think mixing hot/cold at the tap is fine. To put in a $$ mixing valve at the tank then stops you from getting real hot water when you want it.

I've decided that if my kitchen or shower valve goes out I'll replace it with a single handle faucet to allow easier mixing, but while they work, it's not worth the expense.

Reducing the temp in the tank seems like a bad idea, you'll drastically limit how much 'hot' water you'll get from the water heater.
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Old 11-11-2013, 07:42 PM   #12
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I can see changing out the thermostatic switches if you've got small children, but for adults I think mixing hot/cold at the tap is fine. To put in a $$ mixing valve at the tank then stops you from getting real hot water when you want it.

I've decided that if my kitchen or shower valve goes out I'll replace it with a single handle faucet to allow easier mixing, but while they work, it's not worth the expense.

Reducing the temp in the tank seems like a bad idea, you'll drastically limit how much 'hot' water you'll get from the water heater.
You are correct about limiting the available hot water by reducing the temp. Our tanks are 6 to 10 gal to begin with. (Recovery on LP is quicker than electric.) Take a shower and do a load of laundry and you don't have much, if any, hot water left.

I don't think putting a single handle, temperature limiting, shower faucet can be done in my coach. I wish this coach had that. They work fine and help to extend the hot water and also avoid scalding the parts unmentionable.
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Old 11-12-2013, 10:41 PM   #13
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Can't find water heater temp adjustment. 1994 Winnebago Adventurer.
The thermostats are behind a removable steel panel, buried under insulation, against the tank wall.

What is your goal? If the water is not hot enough, as others have suggested change thermostats. There are 2, one is for over-temperature the other for low temperature cut-in. If your heater is overheating the water, there is a chance the thermostats have lost contact with the tank and need to be repositioned.
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Old 11-12-2013, 10:48 PM   #14
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Our water heater is plumbed into the engine cooling system so when we stop we have HOT water (same as coolant temp which runs at least 180). We do have to be careful when we first use the hot water.
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