If you do just one thing today, replace the dirty or clogged furnace filter in your HVAC system. A dirty filter makes your whole system work harder. When your HVAC system works harder to move conditioned air throughout your home, it can gobble up energy and expedite the breakdown of the system. Replacing the filter on a regular basis (every three to six months) can reduce energy consumption by as much as 15 percent, which makes it both an economical and ecological thing to do.
ANDREWS MCMEEL SYNDICATION