Why does my new thermostat seem to take a lot longer than the old one to get up to set temperature?
I recently installed a new thermostat for my electric baseboard (120V) heated apartment (~700sqft). The old one was pretty darn old, but I'm noticing some pretty big differences.
For instance, with the new one, it seems incredibly difficult/prolonged to get the heat up to the set temperature. It seems to run constantly for several hours to get my 700sqft apartment, say 10 degrees warmer. It definitely didn't appear to take so long with the old one. For example, while I am at work from 5:30AM to 4:00PM, I put the heat down to 57 degrees and set it to start coming up to 68 degrees at 3:00PM. When I get home around 4-4:15, the thermostat reads only 59 degrees and it is notably chilly. By 6:30PM it was at 64.
Does it sound like the old one was just off and I should let it run or not turn it down as much? Did the old one have a less sensitive temperature guage? Or does it sound like I didn't install the new one right?