Will this work with my in-wall gas furnace? Current thermostat just broke and it has only 2 wires going to it. There is no cooling system in the house
1406055
If the existing thermostat just closes a low voltage circuit it should work. That's most two wire thermostats. The only other considerations are the minimum run time and the low & high set point. You can adjust the temp spread on this unit using jumpers inside it.
1406056
YES. Will work with low or high voltage 2 wire t stats. Real simple to install and program.
1406057
This thermostat is for hydronic heating systems (hot water radiators heated by a gas or oil furnace). If thats what your in wall gas heater does, then this is the ticket - it only has 2 wires to hook up - right to the ones from your old thermostat I'd guess. If its hot air you've got I'm not sure if this is the one you'd want. You might talk to a local heating guy about it.
1406058
I have a high efficiency water boiler with a tankless water heater system. I also had only two wires. So far these have worked perfectly. Just so you know, they do make an audible click when they go on and off. Doesn't bother us, but some don't like it.
1406059
I replaced an old 2-wire thermostat (mercury switch) with this controller. Works great.
2221884
See the comment by Gene. Note that if you have only two wires from boiler to thermostat you can't power it from the furnace so have to use battery.
1290664
No, this thermostat requires constant power - you will need a 24V "common" wire connected to the thermostat's "C" terminal. You would either need to run additional wires from your furnace to this thermostat, or there is an adapter you may be able to install into your current setup, but I'm not sure if you can make it work with only two wires. Either way you will need to modify your current configuration to include the common wire. See Venstar ACC0410 Add-A-Wire for all 24VAC Thermostats
302219
i dont think so !this thermostat creats its own currant milovolt through the pilot thermocoupler !. and it only uses 2 wires, it sounds like you need a outside power source for the third wire
251486
If you currently have a 2 wire heat only thermostat in your RV, this thermostat will work regardless of furnace manufacturer. It installs easily too.
1066007
You must supply power to the thermostat. In my case, more wires ran between the furnace and the thermostat than were actually used on either end. I just had to figure out where to connect one of the extra wires on the furnace side, to supply the power to the thermostat.
1172424
yup but you need to power it from another source if you only got two wire , depending on the furnace you may have 4 . i had the battery powered stats that did fine on a two wire but wifi needs more power so i got a transformer to run the stat . Elk TRG2440 24VAC, 40 VA AC Transformer with PTC Fuse my furnace had no point to put a third wire for common power "c" terminal so i went and wired stat to the aux supply plugged it in a remote outlet and ran another set wires to stat on wall all set and running fine if you get this set up the tech line at h-well can give you the terminals to mount your 2 new wires the ins booklet had no diagram to run a aux power source c n rc for the new power and remove jumper r n y for the furnace wire pair call to make sure very helpfull Coleman Cable 09632 CL2 Bulk Thermostat Cable, 18-Gauge 2-Conductor 100-Feet used
2055305
I replaced a analog that came from the factory with this thermostat and the wires matched color for color. I think that the only difference would be if you had a heat pump thermostat,then this one would not work.
1487001
I am no expert, but I think that basically you have a heat pump (w/ Aux & Em) like I do, so this thermostat should work as expected; actually, for me, it is a great unit, better than a more expensive model I had before!
1968722
its a switching device. i believe it will work for any two wire heat only set up provided that it falls within your amperage specifications. i replaced my atwwood thermostat with this device and it works well. It comes with a back plate to cover any size opening.
1438850
If it works with your blower, it will work with a thermal switch. I use this switch on my two Lennox gas fireplaces and wired a http://www.amazon.com/gp/product/B0026RYU4W/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 thermostat inline underneath. The switch is on the wall and the thermostat is attached to the sheet metal underneath the firebox.
770407
The thermostat senses room temperature and sends a signal to the furnace to start or stop. I think it should work.
2133326
I believe so...I've had this same model on 3 different furnace systems, none had A/C but this handles that too. It's a pretty universal thermostat for many different applications...With Seriel Numbers that close, I wouldn't worry...It's a 3 wire system, plain and simple...k.j.
1789706
Sorry, mine is just a replacement furnace thermostat. I know nothing about it.
1638087
My thermostat touch screen also failed. I replaced the wall maounted unit (not the controller mounted at the furnace) and it now works fine. If you have a high efficiency system with multiple heating/cooling settings, you will need to program the thermostat. I didn't learn this until a later furnace tune up when I was told the system was using only the low load setting. The technician programed the thermostat.
101074
Depends on how many wires , your voltage and wattage. This thermostat uses a two wire setup. It seems like you might have 4 in which case it wouldn't work. Maybe check out the Honeywell site for more specific information and the manual on it.
1066009
I bought the thermostat today, and found out that my original setup had only four wires; missing C wire. But Honeywell have a video showing you how to substitute G wire for C wire. https://www.youtube.com/watch?v=F05lIaNTMB4 Basically, G wire is for operating Fan only mode (no heat / cooling). You loose the ability to use FAN only to power this thing. You have to change wire on the back plate as well as in the A/C-Heater. I'm not very skilled, but I was able to do it, just following the video.