So what's the general conscensus on closing vents and shutting doors in unused rooms in your house to save energy? I did this for a long time and then when I got a new air conditioner installed, the installers told me it's harder on the unit and you get better efficiency if you have complete flow through all the vents etc. Then I was just on moneycentral.msn.com and they were saying close vents to unused rooms and shut doors. What gives?
Also, what amount of degrees should you have your programmable thermostat go up or down (depending on season) while you're at work? I know if you make too drastic of changes you end up spending more on the drastic changes.