Residential HVAC FAQs

We recommend replacing your air filters at least once a month.

If you do not change your air filter, the air conditioner will continue to draw in dust and other airborne materials until it becomes clogged. This will cause the system to work much harder, resulting in higher utility bills, air conditioner freeze-ups, and possible compressor and/or motor failure.

We recommend buying an air filter with a strong Minimum Efficiency Reporting Value (MERV). The higher the MERV rating, the more airborne particles the filter collects and removes from the air stream.

For most residential homeowners, the furnace should be serviced once during the spring and once during the fall. For commercial furnaces, we recommend major services during the spring and fall, with minor services interspersed year-round.

If your furnace is an older model that has a pilot light, verify that the pilot light is on. If it is a newer furnace with an electronic ignition or glow plug, you should be able to hear an electronic buzzing sound or see an orange glow within the cabinet. If you do not observe any evidence of these things, call us to schedule a repair.

Auxiliary heat refers to your back-up heater. It will turn on and off automatically during periods of extreme cold to help your heat pump continue to perform.

We highly recommend buying a programmable thermostat, because they are more energy-efficient and will enable you to save money on your utility bills. According to the U.S. Department of Energy, you can save as much as 10% a year by turning your thermostat back 7°-10°F for 8 hours a day. A programmable thermostat makes it much easier to do this automatically.

Your thermostat should be centrally located, so that it can read all the air in the house as it circulates back to the system. Most thermostats are already located next to a central return grille.

Absolutely. Having clean air ducts will improve your indoor air quality and prevent contaminants from entering your lungs. In the short-term, this will cause you to have an improved standard of living; in the long-term, it will save you from developing costly health conditions.

In our 25 years of experience, Trane has always been the most reliable brand of HVAC equipment.

The average life of a new HVAC system is 12-15 years. Like everything else, it will last much longer with proper service and routine preventative maintenance.

Absolutely. Routine service check-ups will save you money in the long run by diagnosing minor issues before they become costly HVAC emergencies. It will also help extend the life of your equipment so that you will not have to replace it.

Geothermal energy uses a network of pipes beneath the ground to tap into the Earth’s natural energy. Learn more about geothermal energy here.

We service most of central North Carolina, including Greensboro, High Point, Winston-Salem, Burlington, Thomasville, Kernersville, and more.

We have been in business since the late 1980s, meaning we have over 25 years of industry experience. You can learn more about Superior Mechanical on our About Us page.

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