If you have a forced-air furnace, do NOT close heat registers in unused rooms. Your furnace is designed
to heat a specific square footage of space and can't sense a register is closed - it will continue working at the same pace.
In addition, the cold air from unheated rooms can escape into the rest of the house, reducing the effectiveness of all your
insulating and weatherizing.
Install a programmable thermostat. If you use it to set back the temperature by 10 degrees for eight hours every night,
you'll lower your heating bills by 10 percent. A digital thermostat can pay for itself in energy savings in less than a year.
Don't set the thermostat higher than you actually want it. It won't heat your home any faster, and it
will keep your furnace running longer than necessary.
For the hot months of summer try a whole-house attic fan. This device pushes hot air out through attic vents, lowering
the temperature throughout your home about five degrees in less than ten minutes. Attic fans cost less than $1.00 per
day to operate.