A good furnace should last for 10-15 years. But when the old girl is getting too aged to hum, maybe it’s time to start thinking about investing in a new furnace. How do you know when the time is right?
Many furnace manufacturers require regular maintenance of HVAC systems as part of their parts and/or labor warranty. Some homeowners think if the system is working ok, they’re good to go for the next season. It is important to have your system inspected every six months (once for the furnace and once for the AC).