The answer to 'how often to replace furnace repair' is that the frequency for replacing a furnace depends on several factors, including the age of the unit, how well it has been maintained, and the manufacturer's recommended lifespan. Generally, most furnaces last 15-20 years with proper maintenance. However, older furnaces or those that have not been well-maintained may need to be replaced more frequently, sometimes as early as 10-12 years.
It's important to have your furnace inspected and serviced annually by a qualified HVAC technician to ensure it is running efficiently and safely. They can identify any potential issues and recommend whether repair or replacement is the best option. Ignoring furnace maintenance can lead to more frequent breakdowns and a shorter overall lifespan for the unit.