CT87N1001 The Round Non-Programmable Manual Thermostat, Large, White

I don't care for digital thermostats. Was happy to find this one to replace my old one.

Great replacment for my old 1 , and wiring matched perfect...

Dome style thermostat for heat/AC & WORKS without all that crazy programming!! (I could never figure out all of those settings and I replaced that dumb digital one!) I love the Honeywell dial! So easy and it works GREAT!!!!

Replaced an old/original Honeywell 'Round' with this 2 years ago. Recently it started to act erratically, cycling on and off at frequent intervals much shorter than normal. There are no instructions on how to disassemble and - even though I noticed when installing it - nothing about replacing the battery. It takes a #2450 'button' battery and it turns out the erratic behavior was probably the result of the 'anticipator' not getting proper voltage. Replacing the battery was not a simple, straight-forward process so if you are uncomfortable opening up things, do a search and you will find several videos for guidance. The original 'Round' didn't require a battery since it drew the small amount of current needed from the HVAC unit. With a new battery - everything's working fine now.

I got this to replace an old round mercury-switch version that looked identical on the outside except for color and material. I initially thought that I would just be able to pop this on, but the instructions looked daunting. I read through the instructions 4 times over a week or two before finally deciding that I needed heat on a regular basis. Although some of the instructions could have been clearer I got through it in just about 15-20 minutes. Not all labels on the original thermostat were clear as to which post/wire they were representing, and the blue wire was sitting unattached directly between two posts so I initially mislabeled it... turns out it was supposed to be the unused "B" wire. The new base/wall plate that was to replace the old one attached to the wall was missing the big hole that the wires run through coming out of the wall (but did match the old base plate perfectly otherwise). So that I wouldn't have to move the thermostat over 6" or so on the wall to fit the new base plate (drilling plaster was the last thing I wanted to do), I just left the old base plate and connected the new assembly to it. I've got a two-tone thermostat now, but it doesn't look all that bad, and more importantly... I have heat! I did forget to set the Cycle Rate switch, but turns out that the factory setting is correct for my system. The two control switches (heat/cool, on/auto) have a different mechanism inside than the old thermostat, so the solid "click" is gone, replaced by a softer, mushy, less diffinative muffled click. Comparing the setting on the thermostat to the built-in thermometer, the temp is only about a half degree off. I am keeping the setting lower now... maybe I'm more used to the cold now. UPDATE: A few months down the road and the temps outside called for the blower to bring the cool air up from the basement, and eventually a need for A/C. Neither worked, and my heart sank. Turns out that the unused "B" wire - in my case anyway - was what was needed for both the blower alone and the A/C with blower (the cool side). Since I still had the original thermostat I carefully looked at how the switches on the cool side worked then pulled the new thermostat apart (after turning off the power at the breakers), and hooked up the "B" wire. Now it's done.

The digital thermostat that was installed by our utility at no cost several years ago, was never really of high quality. The vinyl covered flat push button screen was something out of the mid 80's it seemed.It was never very responsive, you had to really push hard on it to make any adjustments, and eventually,actually rather soon after installation, the vinyl started cracking under the pressure of where the push buttons were. Several of the buttons just stopped working all together. Luckily not the most important ones.It was always a few degrees off. And the utility had the ability to cycle it when they deemed necessary on peak usage. That always has kind of bothered me. I've known the thermostat was needing an upgrade, and obviously so did the utility.They offered a new Google thermostat for only $60.00. A pretty good price, but here's the catch, I had to sign a waiver to give the utility even more control over my usage.So I thought, man I miss that analog device, do they even still sell them. And boom, I found this Honeywell thermostat, and ordered it. It works great, and is accurate, and we have full control, at least at the thermostat level, of how we want it set.My wife likes it even more. She loves the simplicity of the old style, just point the needle where you want it, and it's done.