No one gets excited about having to replace their gas furnace. However, the idea of freezing in your home isnʼt too exciting either. Despite efforts to prolong its life, there may come a time when it is better to replace your furnace rather than repair it. The decision to replace your current gas furnace often depends on one, or a combination of, age, condition, and performance.
1) Continuous Repairs
Perhaps you have been there! You think your HVAC system is working well, yet you regularly call an HVAC company again, and again and again for repair after repair. Even with proper maintenance and the dedicated efforts of a highly skilled HVAC technician, an aging furnace may start to show its age.
Continuous repairs can get expensive for a homeowner. If key parts fail, such as the heat exchanger or control module, or repair costs are more than 50% of the cost of a new product, it may be better to replace the unit. However, you should always discuss repair vs replacement options with a licensed HVAC technician to get a clearer assessment of the price tag of repairs and the predicted longevity of your existing gas furnace.
2) Heat Output and Comfort
The indoor comfort of your home and family is probably one of your highest priorities. Gas furnace systems can have a complicated arrangement of gas and electricity working together. If one or more parts involved in delivering heat is damaged or not working as intended, your heating system has the potential to become a comfort hazard.
Older furnaces that do not comply with current standard codes may pose a higher risk due to their earlier technology. Newer gas furnaces are equipped with many features that shut the furnace off when a problem is detected, but older furnaces may not have these devices.
Preventive maintenance and professional inspections are important aspects of the operation of your gas furnace. While diagnosing your furnace, a gas fitter technician may uncover small cracks, leaks, rust, rot, soot, frayed wires or corroded electrical contacts that can lead to furnace failure.
3) Energy Efficiency
According to Energy.gov, heating and cooling account for up to half of a typical homeʼs total energy use. As a result, a homeowner should make every effort to increase the energy efficiency of their HVAC equipment.
While there are a variety of potential fixes that can increase your HVAC equipment’s energy efficiency, the gas fitter technician may reveal that the AFUE (Annual Fuel Utilization Efficiency) of your gas furnace may be the primary cause of these excessive costs.
An older gas furnace with an AFUE rating of 70% would mean that only 70% of its fuel is used to heat your home. The remaining 30% may escape through the chimney or exhaust. That means that up to 30% of the energy used to run your furnace may be wasted. A high-efficiency furnace model can offer higher AFUE ratings, potentially providing significant energy efficiency and savings on utility costs.