Over the life of a new furnace, the big dollar savings will be in your heating bill, not your tax return--particularly if you live in a cold climate.

FORBES: Energy Tax Breaks: About To Expire

That furnace would save a typical homeowner 16% off his heating bill, compared to an 80% efficient unit, the new minimum standard put out by the DOE, says Steven Nadel, executive director of the American Council for an Energy Efficient Economy.

FORBES: Energy Tax Breaks: About To Expire