Our furnace had stopped heating and was just blowing cold air. The technician came out to repair it but found that the furnace parts were old. He said that he could try to find the parts (and even called his supervisor to check), or that the furnace could be replaced. The quote for the new furnace was very reasonable, and they were able to install it within a few days, so we went with that option. The installers were very professional and friendly, answered all of our questions, and took out the old furnace and surrounding duct work with no problems or mess.