SearchAsk us anythingarrow rightShould I replace my 30-year-old furnace?Yes. A furnace has a life expectancy of 15 to 20 years.Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERRELATED QUESTIONSCan I Replace My Furnace Without Replacing My AC?You can replace your furnace without having to replace your AC unit. While you may be considering replacing your whole HVAC system once your furnace gives out, this isn’t always the most practical solution, since each unit of the system can be replaced without significantly affecting the other.When should I replace my furnace?According to most heating manufacturers and professionals, as well as this old house, the average oven will have to be replaced every 15-20 years, provided that the system is maintained correctly.Should I replace my 20-year-old furnace?Yes. A furnace has a life expectancy of 15 to 20 years.Should I replace my 10-year-old furnace?No. A furnace has a life expectancy of 15 to 20 years.Can I replace my own furnace?Yes, ovens fall in the licensing area. In most states, a furnace or mechanical licence is a requirement for those who need to completely replace a furnace. The replacement and installation of the furnace is a large housing project, which requires a lot of work from installation equipment and contractors.