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July 19, 2025
This is a great little thermostat. No frills with a simple 5/2 (weekdays/weekends) program and 4 events (wake / leave / return / sleep) per day. So as long as you have a regular monday-friday schedule and don't need a unique program for each day, this will work great. It's very easy to do temporary overrides or even sustained ones with the "hold" feature. The display is backlit, so there's no need to turn on the lights if you wake up in the middle of the night and it's a little warm (or cold).It also has a nice "compressor protection" feature which prevents the A/C from turning on too soon after the end of a cycle and overheating the motor or freezing the coils. So if the air just finished a cycle and you want it to get colder, you will will have to wait a few minutes, but it could save you an expensive service call, especially if you have older relatives in the house who are never comfortable no matter what the temperature is.A big attraction for me was the vertical orientation of the unit. It's very hard to find a decent programmable thermostat that is vertical. Well I wanted to cover the hole in my wall without getting a giant eyesore or turning a regular one sideways, so I didn't have a lot of options. I previously had the RiteTemp touchscreen unit from Home Depot, but the touchscreen died, which rendered it useless for anything other than what was already programmed into it.This little guy is cheaper than almost anything else, is uniquely vertical, and works great. For the money, it pays for itself in a month or two, so give it a try.
Customer
May 21, 2025
We were looking for a thermostat to replace the old vertical mercury thermostat we used to have. We soon found out that there are very few vertical thermostats on the market, which is surprising since vertical mercury thermostats seemed very popular (and I assume that a good chunk of the new thermostats are going to replace the old ones). We got this thermostat mostly due to its size and orientation, and do not regret it. It works well, was pretty easy to setup, program and use. I think it misses a few features like adjusting 0 mark, so you don't have to change every single setting in a program when you want to adjust all of them by a few degrees. While this feature would be useful, we really only needed it at the beginning to find the sweet spot of comfortable temperature vs energy savings. Overall it's a solid product for the price, and if you are looking for something to replace a vertical thermostat without having to cut your dry wall - this is a good option
TC
January 4, 2025
Amazon did a great job getting this product to me and I had it installed by my apartment complex' maintenance crew. I’m not sure if it is the thermostat or if it wasn’t installed correctly but there are days when the heat exceeds the temperature setting. Other times, I have to hit the "run" button because the heat doesn't come on and the apartment is colder than the temperature setting. Other days it seems to run just fine. I will say it is simple to program and easy to see the settings. It wasn’t expensive but I am disappointed that it doesn’t seem to work better.
Mythologiques
November 23, 2024
This thermostat seemed fine when I bought it last spring. I've had good luck with Honeywell thermostats, and I needed a programmable thermostat in a vertical configuration to fit a narrow space on the wall. However, early in this year's heating season my TH2110D ran amok. It started regularly overrunning the specified temperature, and within three days was heating my weatherized porch at 76 degrees instead of the set point of 68 degrees. So much for energy savings!I checked all the settings and they were still correct for my hot water gas-fired heating system. I replaced this thermostat with an older unit that I still had and the old unit worked fine. Since I am not a professional heating contractor, Honeywell does not honor their warranty. Since I'm way past Amazon's return period, I have no recourse. Buyer beware!Pros:Slim vertical design, adaptive intelligent recovery feature, backlit display, 5-2 day programmingCons:Not reliable and no warranty for non-professional owners.
F G
November 8, 2024
Perfect size but only for use with a 24 VAC system. Whoever wrote the manual on the wiring needs to go get some rest and start over. The instructions for wiring the device is confusing to me especially for setup without using the batteries. It was the most confusing but simple wiring diagram ever. You got the feeling that you NEED to definitely call someone to confirm what you're supposed to do when you shouldn't have to, at least not for my 2-wire system. I gave it the two stars for the size and the fact that it is back-lit.
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