Product Review of Honeywell 7400D Conventional 5-1-1 Day Programmable Thermostat

This is another gadget blog. We live in an older home that was built back around 1880. We decided this weekend we were sick of having to change the thermostat every morning when we got up, when we left for work, when we got home, and when we went to bed. The old mercury thermostat would be set for 62 during the day and night when we were at work, but it usually had to go down to 52 before it was kicked in and then it would go up to 68 - 70 before starting to cool again. We had the same problem on the high end. So it seemed like we were always freezing or cooking. Since we have installed the Honeywell it has been right on the noise at 68 for when we are here, and 62 when we are sleeping or at work. We have oil heating water that runs through big metal radiators, and this thing keeps it right on the temperature it is set for. It will definitely pay for itself this year. We have no more extreme weather inside, and we don't have to remember to change the thermostat 4 times a day, which we forgot have the time. Installation was really easy. We had a system that was so old the wire diagrams did not match our old set up, but I followed the advice on this blog and had it installed, running, and programmed within 30 minutes. I'd recommend this thermostat to anyone upgrading any old system.