TH5220D1029 Focuspro 5000 Non-Programmable 2 Heat and 2 Cooling Thermostat, Large Screen

Perfect!

I HIGHLY RECOMMEND THIS THERMOSTAT - UPDATE After more than one year using this thermostat, this is the best I have found for operating a two stage air conditioner. Read below for more details. If you live in a hot climate and have a two stage AC, this is the thermostat for you! Your house will be more comfortable and you will save money. It beats the fancy "smart" thermostats hands down! CORRECTION FROM ANOTHER REVIEW First of all, I want to correct some misinformation from another review. One reviewer indicated that you could not illuminate the backlight without changing the current state of the thermostat. Either that problem has been corrected or never existed. If you press either of the set point up or down buttons, the backlight illuminates and the set point does not change. A second push while the backlight is still on will change the set point. Very convenient. I am delighted with this thermostat. HISTORY OF MY STRUGGLES FINDING A GOOD THERMOSTAT Ever since replacing my HVAC system nine years ago with a two stage heat and cooling system, I have struggled to find a decent thermostat that does a good job managing the two different stages. It is nearly impossible (even when reading the installation manual) to discern the logic used by the thermostat's algorithm concerning when it will run on first or second stage cooling for example. Furthermore the installation manuals explanation of the setup options don't really explain what the actual hysteresis will be. Some have a “delta temperature” setting where the choices are typically 0.5 or 1.0 or 1.5 deg F. These choices are too granular and don't work for many homes with good installation. In my case, on hot summer days the Braeburn 5390 thermostat that was installed with my system would generally run far too long (usually on high cooling stage) before finally shutting off 25 to 45 minutes later. Then it would remain off for 45 minutes or longer before turning on again. All this with the setup option set for 0.5 deg F, the most “sensitive.” The house was never comfortable. Early in 2024, I tried an Ecobee 3 Lite. See my full review on Ecobee. I bought it because the installation manual indicated it has a setup option to select how many cycles per hour the system should run. I set that option to the most cycles per hour allowed and it still only cycled about once per hour – running 30 min or more each time it called for cooling. It was an improvement in that it did a better job of managing the two cooling stages but still did a poor job of keeping the house in a comfortable range. Due to this, and other worse behaviors you can read about in my review, I only used it a few months this past summer. THIS THERMOSTAT WORKS GREAT Late in the 2024 summer cooling season I purchased this Honeywell FocusPro 5220D thermostat. It is perfect! Besides being simple to set up to match your system type, it has a very robust choice of options for controlling the two stages. It has separate options to control how many cycles per hour it should run when running on first or second stage. It also has two separate options for the heating stages. The default for each of these options is 3 cycles per hour but it has many more options. You don't have to guess what hysteresis or “delta-temp” to set it for because it adapts itself to your house. If you have a very well insulated house it will automatically reduce the hysteresis or temperature delta in order to cycle the appropriate number of times per hour. As expected, this means the air conditioner runs less duration and on a lower stage when the outside temperature is lower. It also does a good job of staying in first stage cooling unless absolutely necessary. My old thermostats including the Ecobee insisted on switching to high stage for a few minutes at the end of each cooling cycle when there was no reason to do so. ADDITONAL BENEFITS OVER PREVIOUS THERMOSTAT I very happy that this thermostat has battery backup (or battery primary power if your system does not have a common wire run to the thermostat). I am also happy that it does not lock up in a ridiculous “calibrating” cycle for 20 minutes every time the power goes out like the Ecobee, and that it remembers the set point when power goes out. I'm happy not to have to dig three or four levels deep into setup menus just to get it working like the Ecobee – all while standing next to the thermostat since the Ecobee it has not battery. This Honeywell can be set up while sitting in your easy chair prior to installation. It does not need WiFi or internet to operate. The Ecobee behaves very badly and refuses to operate properly without internet connection.

Works like a charm. Level the extended screen as well

I've had this thermostat for MANY years and it has been great. I love the simplicity of it, and it's easy to use. It has been reliable and accurate. I have never wanted all the extra bells and whistles that a lot of the thermostats have today. I just want the ability to change the temperature for heat and cold and that's about it. I have been so pleased , so I bought another one to keep on hand in case anything ever goes wrong with the original I have. When I told my AC guy that I had bought an extra, he laughed and said, "You probably wasted your money, cause these thermostats last forever!" I will say that for its size and simplicity, I was surprised how much more they cost today. I wasn't expecting to pay over $100, but then I do realize that sometimes you truly do get what you pay for, and this thermostat is a proven winner! So, NO complaints here! I highly recommend this item!

Good thermostat. Easy to use