When a furnace begins having problems, many homeowners ask the same question: should you repair the furnace or replace it entirely?At first glance, repairing a heating system often seems like the less expensive option. However, depending on the age of the furnace, the cost of repairs, energy efficiency, and long-term reliability, replacing the system may actually save significantly more money over time.For homeowners across Ontario, especially during harsh winter conditions, having a dependab...