My wife is a teacher. She's got a PhD in Inorganic Chemistry and teaches at a state college here in Georgia. As such, she has access to lab equipment. I asked her to bring home a cheap thermometer. She brought home an alcohol-based thermometer and I draped it over the thermostat.
The alcohol-based thermometers are relatively inexpensive compared to mercury-based thermometers, and accurate to a half-degree Celcius (0.5Âº C). My thermometer in my master bedroom reads 72ÂºF, which is about 22.2ÂºC. The alcohol-based thermometer reads 23.5ÂºC, or about 74ÂºF.
Ok, so a two-degree temperature difference may not seem like much, but to the eyes of a wife that writes the checks for the bills every month a two-degree difference in where one sets the thermostat can change her mood.
Now, I plan on measuring the temps in the other three bedrooms on this second floor. This includes a bedroom converted to a small theater room (complete with a 145-pound CRT projector) and another converted bedroom that is my computer room (complete with a PC with four hard drives in it as well as a 19" CRT monitor).
I am doing all of this to put into numbers for my wife that sometimes understands these other rooms are warmer in the Spring-Summer months, but she doesn't adjust her thinking of tolerability within scientific evidence. lol