80 Series, Non-Programmable, Universal Thermostat, 1F85U-42NP

Sounds funny to love a thermostat, but it is what it is. Let me count the ways: 1. The instruction manual is well-written. So many manuals written by so many other companies are sheer torture to read through. 2. The thermostat is both simple to operate and full featured. That's easier said than done, thus the reason it's rarely done. 3. The "full features" are found in the "Installer Menu" of setup (hold "Menu" button for 8+ seconds to get to it) in which you can adjust a wide variety of settings, including the "cycle rate" which affects how cool or hot outside of your desired temp it is allowed to deviate before turning on again (a common complaint from a lot of people, but it's a trade-off--more frequent cycling is hard on your A/C and uses more electricity). There are 20 different options in the Installer Menu. 4. For programming the On-Off times and days, I didn't even have to read the manual, thanks to how intuitive it is. The very first time I tried it, I figured it out. That's a well designed thermostat. 5. $55 for such a thermostat is a bargain. 6. It works great without a "C" wire (common). The C wire allows it to be powered from the transformer rather than batteries, which also allows the display to stay illuminated all the time (otherwise you press a button on top to illuminate it, and it stays lit as long as you're making adjustments). I'm adding a C wire, but can see it would be fine long term without it. 7. The overall style is just plain good. It's tough to describe, but it seems most all manufacturers have convinced themselves they need some kind of racy, eye-spinning aesthetic to sell their wares (and then downplay or ignore the actual logic of using it). This thermostat has none of that. It's attractive, calm, and doesn't drive you crazy. 8. Wi-Fi connection would add complication, cost, and glitches, all of which I will gladly live without. I just became a big fan of White-Rogers by Copeland (the branding on the thermostat, but it otherwise appears to be the exact same thermostat as the Emerson described and pictured in the product listing, including the exact same product number).

I got this replace my old Emerson Thermostat. It was ease to use. I haven’t any issues before with Emerson and will continue to use it.

Display is great; backplate large enough to cover almost any previous cutout. Simple to program. But you'll want to set the "installer settings", which may intimidate novices. Would have preferred spring-loaded push blocks rather than screw terminals. It'll say "Rogers-White" on the front rather than "Emerson", which irritated my daughter.

So far so good. I’ve had this thermostat for about a month and it’s working great. It was very easy to install and program.

Replaced an older thermostat in my home; this one has all the features I was looking for (operates off wire power with battery backup, auto heat/cool, temp programming, etc) that I was looking for. It's a small thing, but I also like that it has a backlight that you can either push to turn on or set to be always-on if you're wire powered. You will need to dive into the "installer menu" to get it going, but a few Google/AI searches will square you away there as the manual isn't quite enough for the average guy. Be sure you test it when you're done to make sure you don't have a heat pump that cools when the heat comes on and vice-versa by default (I did). Yes, you'll need to go into the installer menu to fix that but it's just one setting.

This thermometer worked great on my ComfortMaker furnace. It was very easy to install and programming it was not that difficult. After wasting time programming the new unit, I decided not to use the programable options. After making the decision, I should have bought the unit that was not programable. I would have saved $20-$25 and still had a great thermostat controller. Oh Well....!

Works good

Too difficul to setup

Easy installation. Works very well.

works great, easy to use and program. Easy to read also.