Honeywell RTH8500D Review
Posted on September 18, 2015
If you are looking for a thermostat with touchscreen function that doesn’t use batteries then you will most definitely come to love the Honeywell RTH8500D.
(Note: It is able to run on batteries if your system does not provide 24vac power.)
This unit is equipped with every feature that you can ask for in a programmable thermostat.
The installation is really easy if you are reading the manual carefully and the thermostat itself looks great when mounted on your wall.
The unit will automatically switch between the temperature range settings “heat” and “cool” meaning it’s not a hassle to set the perfect temperature range. Although, this function is disabled by default so you have to look in to the advanced options on the screen to enable this feature.
You are able to program each of the 7 days of the week individually with up to 4 different events (wake, leave, return, sleep).
Does What Cheaper Thermostats Can’t
One of the most intelligent features of this unit is the “recovery” mode which means that it learns how long it will take to either heat or cool your living space and it simply turns on the heater or air conditioner early so that it will reach the preffered temperature at the time you have selected.
The cheaper thermostats have a tendency to only turn on at the set time and the the temperature catches up to the program.
The RTH8500D always anticipates you needs, meaning if you want it to be 73 degrees when waking up at 8:00 then simply set the wake-up event to 73 degrees at 8:00. This thermostat takes care of the rest.