“As an HVAC contractor we have installed over 125 T4 thermostats in the past year and only one thermostat had a problem and had to be replaced. If the thermostat is correctly set up from the beginning (and yes, it has an internal setup) there should be no real issues. Like anything, if you don't know how to set it up or don’t read the installation manual, then you will have issues. It’s not a thermostat that you take out of the box and install without properly setting it up.”
“Had a PeakSaver Plus which was touchscreen and allowed you to choose any days in combination to program together. This only allows Mon-Fri together and Sat & Sun individually. Who designs this garbage? Who sets Friday night the same as the rest of the weekdays? There should be more customization allowed. There is also no Circ option which the last thermostat had. It's definitely a downgrade but the HVAC installer said the PeakSaver wouldn't work with the new furnace. In this day all thermostats should have WiFi and/or Bluetooth connectivity. Some reviewers mentioned remote access through an app. I don't believe that is an option.”
“So have had this for about 3 years. I agree with everyone's assessment of how difficult it is to discover how to program it. Still haven't found the 5-2 programming option. I don't like the adaptive memory because it means the heater turns on a different time EVERY day. For someone who doesn't sleep well that is a big no-no. Also, I have to adjust it every month because of that feature. In the dead of winter sometimes it turns on at 4 a.m. I am continually changing the start time for the heater. Would replace if it wasn't so new and expensive. My heating guy selected this when we replaced the heater. I had no choice.”
“I use these in all my apartments when I have to replace one. Programming instructions are in the manual, easy to use and program. Turn features on or off. It’s simple.”
