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Programmable Thermostat, 2H/1C Heat Pump, 1H/1C Conventional, T4 Pro Reviews

4.3 Rating 155 Reviews
Clear and easy instructions. Looks good on the wall. Large numbers, easy to read.
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Posted 3 years ago
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.
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Posted 3 years ago
This was installed to replace the PRO 4000...
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Posted 3 years ago
Thanks for the reviews posted. I set my schedule and for no reason, the heater came on an hour early and woke me up sweating. Turns out the thermostat has intelligent adaptive recovery. It anticipates how long it takes to get to the new temp and turns on early. Ugh. So you can turn this on and off if you know the procedure. The manual you need is the “installation manual”.
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Posted 3 years ago
This thermostat is exactly what you want if you have wifi and multiple schedules to program. Honeywell Home App is easy and it WORKS! Easy setup, easy to adjust, and you can lock it so children and temperature-challenged individuals can't change the settings without asking!
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Posted 3 years ago
Works for 2h/1c heat pump installation. Not needed for gas heater, but works fine.
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Posted 3 years ago
This is a great thermostat once you turn off adaptive intelligent recovery (recovery mode)...
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Posted 3 years ago
I am a contractor and use them, but my suppliers have gotten greedy on pricing!
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Posted 3 years ago