Better Thermostat |
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Colt
Senior Member Joined: 16 Nov 2019 Online Status: Offline Posts: 383 |
Topic: Better Thermostat Posted: 17 Mar 2021 at 8:20pm |
I'm in eastern KY in cool, rainy weather. Just what they need, more rain. Using the heat a lot. I get uncomfortable 5 or 6 degree temp swings (70F setpoint drops to 65F before the furnace comes on. Can I get a thermostat that will control it tighter? Will the furnace tolerate that?
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John
'16 R-Pod 180 |
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Posted: 18 Mar 2021 at 6:48am |
Sure, any thermostat that provides a contact closure when calling for heat will work. If you get an electronic one then it needs to operate on 12Vdc. I use on of these little W1209 tstats to better control the water heater. The W1209s are incredibly cheap yet very versatile and run on 12V. If you don’t want it visible on the wall you can put it somewhere concealed and just locate the thermistor temp sensor where it gets a good interior temp, away from the furnace vent of course. You can also calibrate it with an accurate thermometer.
Tstat As for the furnace tolerating it that’s a good question. You don’t want it to short cycle too much so the temp delta (aka hysteresis) of the tstat can’t be too tight.. But the furnace has a built in time delay as the fan runs for awhile after the gas shuts off. The W1209’s have settable hysteresis and time delay so you can play with it if you think it’s short cycling too much. |
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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Colt
Senior Member Joined: 16 Nov 2019 Online Status: Offline Posts: 383 |
Posted: 19 Mar 2021 at 4:15pm |
I think that would work, but I'd prefer a more attractive replacement for the OEM t'stat.
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John
'16 R-Pod 180 |
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offgrid
Senior Member Joined: 23 Jul 2018 Online Status: Offline Posts: 5290 |
Posted: 19 Mar 2021 at 7:21pm |
To paraphrase Forrest Gump, pretty is as pretty does.
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1994 Chinook Concourse
1995 RV6A Experimental Aircraft 2015 Rpod 179 - sold |
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podwerkz
Senior Member Joined: 11 Mar 2019 Location: Texas Online Status: Offline Posts: 966 |
Posted: 21 Mar 2021 at 8:23am |
If you have the dometic electronic thermostat, see if this helps...your thermostat might be set for 2 degree differential (swing) and possibly changing it to 1 degree will increase your comfort...try it:
"You can configure the system to operate using On/Off differential of 1 or 2 degree F. To set the temperature differential: Ensure your thermostat is Off. Press and hold the “―” button. while holding it, also press and hold the On/Off Mode button for three seconds. Release the On/Off Mode button. Then release the “―” Press the “+” button to toggle between “d1” and “d2”, “d1” for 1 degree F differential and “d2” for 2 degrees F differential." Then press the mode button to save. Mine also has a 'Co' setting and I have no idea what that one does...it might be a Celsius setting? I dunno I didnt change it. Good luck. |
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r・pod 171 gone but not forgotten!
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Colt
Senior Member Joined: 16 Nov 2019 Online Status: Offline Posts: 383 |
Posted: 25 Mar 2021 at 7:33pm |
You're correct. It was on d2. I just put it on d1. We'll see how it does tonight.
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John
'16 R-Pod 180 |
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