A thorough check should be performed on your furnace by the experts. It is always a viable option to replace a furnace over 15 years old, even if repairs are possible. If the technicians quote a repair price that is more than 50% of the cost of a new furnace, you’re better off with a replacement. A technician can also estimate how many years the furnace can work efficiently, so you know if it’s worth investing more in it than buying a new one. To help you choose a furnace, the technicians will offer different choices based on your budget.