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Old 02-05-2015, 06:40 AM   #11
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Location: Eastern PA
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I had the dometic analog on my last TT 2006 Flagstaff 831RLSS and I swapped it out for the hunter in the mod that someone created on this forum. I linked to the other thread for you.

Hunter Thermostat Install

It worked great and was a huge difference for us.

My new trailer has a digital Coleman Mach thermostat now and that works well too so you'd be happy with either of those choices. That's all I can speak of since that's all I have experience with. I know there are others that used Honeywell as well.

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Old 02-05-2015, 07:10 AM   #12
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there are a ton of threads on this's one on replacing the coleman mach analog.....New Honeywell Thermostat (Replacing Coleman Mach)

2008 rockwood signature ultra lite 8315SS[SIGPIC]
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Old 02-05-2015, 11:47 PM   #13
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Thanks guys, big help. Will try to hit Wally World/Lowes this weekend.
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Old 02-06-2015, 07:04 AM   #14
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Location: SW Missouri
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Here is a link to my thermostat upgrades.

I used a residential model as they are cheaper than the Coleman's (I had two to swap), and I also wanted one that was back lit for easier operation at night.

Search WM, HD, Lowes and Amazon for the cheapest one you can find. Painting them black and adding the switch for a two speed fan is optional, there isn't much difference on RV A/C units so some people just wire them for high.
If you use a Honeywell model the wiring should be the same as shown in my link.
2017 Open Range - Light 297RLS, BX1 Gooseneck
1997 Dodge Ram 2500 CTD LB 4x4
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Old 02-06-2015, 11:04 AM   #15
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I put in a Honeywell RTH111. I think it was $20 at Home Depot. It only runs the furnace on my hybrid.

Manual attached.
Attached Files
File Type: pdf Honeywell RTH111 owners-manuall.pdf (403.6 KB, 27 views)
1988 Coleman Sequoia - popup (1987-2007)
2012 Roo19 - hybid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
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Old 02-06-2015, 12:02 PM   #16
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Location: SW Missouri
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Looks like the Non-programmable version of mine, Honeywell has many models and I'm sure they all work great. Here is the
RTH2300B at WM.

When I bought mine the programmable version was the same price, and came with a back light which I was after.
2017 Open Range - Light 297RLS, BX1 Gooseneck
1997 Dodge Ram 2500 CTD LB 4x4
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Old 02-09-2015, 11:22 AM   #17
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With my previous TT I had the old fashioned round-shaped t'stat (don't remember which brand) and it was off by at least 5 degrees. I found a post, complete with photos, by searching this site that had good instructions as to how to change over to a Honeywell brand digital t'stat from Home Depot for about $20. It's out there somewhere in this forum. The change over was well worth it. As far as electric heaters: In the old TT we used a small electric heater and it worked just fine to keep the unit warm/comfortable for sleeping. We picked up our new unit three (3) weeks ago and went camping as we had previously made reservations. The heater from the old unit would not keep this new TT even comfortable so I had to fire up the furnace. We have since purchased an additional electric heater and it paid off this past weekend when we went camping and it got down to 29 degrees Friday night. My theory is that I don't mind using the electric heaters as I've already paid for the electricity for my spot. The furnace uses LP gas which I have to pay for in addition to the electric at the campsite.

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