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Old 08-14-2012, 06:56 AM   #1
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If you have one of the Atwood gas/elect hot water heaters and the water is too hot...

I emailed Atwood about my water heater temp being so hot it will burn you, and after a 2nd email 2 weeks later I finally got a reply.
They told me there is an Atwood adjustable thermostat you can buy and install.

Atwood Part number 93105

I am going to search the web and find one because that water temp is way too hot for me.

Maybe you feel the same way, and this will help.
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Old 08-14-2012, 07:21 AM   #2
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I too think the water is too hot.

I found it on Amazon:

http://www.amazon.com/ATWOOD-PRODUCT...t+number+93105

The research I have done so far does not speak well of the reliability of this thermostat. Generally what I have found is it won't hold a consistent temperature and the failure rate seems to be quite high.

It also appears this thermostat will only control the temperature when operating on gas. You would still have too hot water when on electric. That makes it worthless in my book. However, I have not been able to confirm this.

Would be interested to hear from others on what they find. Particularly an installation instruction sheet.
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Old 08-14-2012, 09:13 PM   #3
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I find that if I turn the cold water on with the hot water while showering that it cools the hot water some.
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Old 08-14-2012, 09:18 PM   #4
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UPDATE: I have confirmed this thermostat is effective ONLY when operating on gas. It has NO effect on electric operation.
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Old 08-14-2012, 09:27 PM   #5
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Why not just open the hot water tank bypass a wee bit to mix cold water with hot, effectively lowering the temp?
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Old 08-17-2012, 07:42 AM   #6
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UPDATE #2: It appears that Atwood does not create all models thermostatically control in the same way. Some have SEPARATE thermostats for electric and gas operation. Others will let the electronic control module control both electric and gas from the same thermostat.

My particular unit has a yellow wire running from the control module to a relay at the rear of the water heater for the electric element. The key seems to be if you have that yellow wire then ONE thermostat controls both. If you do not have the yellow wire then the thermostat described in this thread will only control the gas operation.
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Old 08-18-2012, 08:21 PM   #7
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I too think the water is way to hot. I am surprised that they set it to be that way. If I had young children camping with me I would install the thermostat, but since it is usually adults I just warn them that the water is very hot. My water heater, like many others, only runs on propane so the thermostat only working on propane would not be a problem for me.
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Old 08-18-2012, 11:14 PM   #8
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Has anyone considered installing an Anti-Scald Mixing Valve? Just dial it to the temp you want and forget it. My only concern would be winterizing the valve.

Here are a few valves I found doing a quick web search. http://www.pexsupply.com/Honeywell-A...-Valve-1474000
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Old 08-20-2012, 09:26 AM   #9
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I ordered a couple of thermostats which might be here today or tomorrow. I'll take a look at how the connect up and get back to you folks. I really can't believe they don't have an adjustable thermostat on that heater. It seems to me that opens them up for a lawsuit if someone gets burned. This seems like a lot of work to fix something they should have addressed already.
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Old 08-20-2012, 10:35 AM   #10
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Quote:
Originally Posted by chuckworkb View Post
really can't believe they don't have an adjustable thermostat on that heater. It seems to me that opens them up for a lawsuit if someone gets burned.
Yeah, that's why you can't get a really hot cup of coffee at McDonalds any longer.
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