Posted By Posted by Tom's Mechanical
How do you know when it is time to replace your gas furnace ? HVAC industry statistics indicate that central heating and cooling systems have an average life of less than 15 years, so if your furnace was installed before 2000 it may be showing signs of wear. However, if it is has been properly serviced your furnace could easily last 20 years or longer. How do you know where you stand? Compared to ...