The bottom line: Numerous issues can cause a furnace to fail, temporarily or for good. If the cost of repair would be prohibitively high—or if replacement offers the only way forward—bear in mind that, although heating equipment doesn't come cheap, there’s a silver lining. Newer furnaces offer unprecedented efficiency, so you should end up saving money each month on energy bills and gradually recoup the cost of the new unit. Of course, to reap the greatest benefits from a new furnace, it must be installed correctly. For such a high-stakes project, many choose to work not with a local outfit, but with a well-established, nationwide service provider like Sears Home Services. Schedule a free in-home consultation today!