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Old 10-09-2009, 08:50 AM   #1
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altering the thermostate

One thing I don't like about the gas heater in my Casita -- and I assume my Escape will have the same Suburban brand --- is that it is so noisy it's hard to get to sleep and stay asleep.
What happens is that there is built in temp gap between on and off and that gap is too close for the heater to rest for any significant period of time.

An example would be 30 degrees outside and I set the thermostat to 60 degrees.
The heater comes on and brings the inside temp up to 60 and then shuts off.
The temp drops to 55 and it comes back on.. that is a five degree gap.
Because it is only five degrees (probably less actually) it is turning on and turning off often and that is what makes it hard to get to sleep.
Its the sudden noise, followed by sudden quite, followed by sudden noise, that makes it hard for me to sleep with it on.
If it was off longer or on longer it wouldn't be as annoying... i think.

That can be achieved by increasing the temp gap to say 15 degrees so that I can set it 65 and when the temp get to 65 it turns off but does not turn back on until it gets down to 50 degrees. This means it will not be turning on and off so often during the night.

Is there a thermostat that can be programed in this manner?

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Old 10-09-2009, 09:15 PM   #2
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Re: altering the thermostate

Hi: ronsmith... If Reace can get a dimmer light fixture for the bathroom in a 5.0 I bet he can get one of those thermostats you want. Just adjust the price accordingly. Alf
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Old 10-10-2009, 02:31 PM   #3
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Re: altering the thermostate

Couldn't just put in another regular programmable thermostat? It's probably just 2 wires.. (like any other one).
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Old 10-10-2009, 06:59 PM   #4
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Re: altering the thermostate

Quote:
Originally Posted by JeffZ
Couldn't just put in another regular programmable thermostat? It's probably just 2 wires.. (like any other one).
HI Jeff... I have looked at a lot of programmable thermostats but have not seen this particular function.
You would have to be able to set the gap I was talking about.
Let me know if you know of one.

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Old 10-12-2009, 03:13 PM   #5
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Re: altering the thermostate

My two cheap "solutions" -

1. I bought a heavy comforter for us. I just turn the thermostat off at night.

2. I sleep with ear plugs -- my wife snores sometimes. (I sure hope she doesn't read this! )

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Old 10-13-2009, 12:29 AM   #6
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Re: altering the thermostate

I met a few Escape owners at the North Oregon Gathering this weekend. One of them was a lady named Louise who clamed to have reduced the gap to give better temperature regulation. I have not had the time to investigate how she altered the "deadband" or "hysteresis." Last time I looked at a electro-mechanical thermostat, it had a bowed glass tube filled with air and a drop of mercury. the bow was oriented into an inverted, but very shallow U. This bulb was attached to a bimetallic coil and the mercury would either sit at one end of the bulb, where it would make an electrical connection, or the other end, where it would not. The shape of the bulb created the hysteresis characteristics, and was in no way adjustable.

I will look myself, and then contact Louise. But not tonight and not tomorrow.

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Old 10-13-2009, 10:33 AM   #7
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Re: altering the thermostate

Ron there is normally an adjusting screw on most thermostats.
I'm sure if you take the cover off you will find one.
It will adjust the gap between the contacts.
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