I have a programmable thermostat now. I really just wanted to do some handywork in the house, so I got one. I think it was on sell for about 40 dollars. It's not a fancy touchscreen like my friend Dan's, but it will do. The nice thing is it has a feature that allows you to know how long it has been since you last changed your air filter on your furnance (another money saving idea).
I've read that the savings you reap from this is when you set the temp down 10 degrees lower than where you normally have it and leave it there for 8 hours. This should give you a 10-15% savings. In other words, 1% savings for each degree lower for 8 hours. It is nice to have the temp automatically drop low when we are gone in the day and it is back to comfortable when we roll in the door at night. I even can make weekend vs weekday programs.
Computers are great!
In case you are going to bring up the point about the furnance overworking to warm the house back up...
According to the Feds,
"The fuel required to reheat a building to a comfortable temperature is roughly equal to the fuel saved as the building drops to the lower temperature."
This is a statement based on lowering the temperature for at least 8 hours and having a conventional furnace.
OH! Be careful throwing your old manual thermostats away. MERCURY! eek!
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