Guide for HVAC System Components

From heating to air conditioning to ventilation, the HVAC system handles a number of different operations in your Kennard, Texas, home. Get to know each component and its lifespan in this guide to your HVAC system.


When the winter season brings chilly temperatures to the Nacogdoches area, the furnace helps keep your home cozy and warm. Most furnaces last for 15 to 20 years, but some homeowners opt to replace them sooner to take advantage of new energy-efficient technology and related cost savings.

Air Conditioners

Most Texans rely heavily on air conditioners to keep them cool and comfortable throughout hot and humid summers. Air conditioners tend to last for 10 to 15 years, and homeowners can help these units last longer by providing regular preventive maintenance.

Heat Pumps

Though their name might imply otherwise, heat pumps take care of both heating and cooling. These devices operate by moving heat into your home in the winter or out of your home in the summer, and they can function with significantly less energy than traditional heating and cooling systems require. Standard heat pumps typically last for about 15 years, and geothermal heat pumps last for up to 25 years and sometimes longer.


One of the most important parts of any HVAC system, the ductwork moves conditioned air from the furnace, air conditioner, or heat pump to every room in your home. Well-maintained ductwork can last for 50 years, as long as you take care to address exterior cracks and interior debris over the course of its lifespan.


Manual thermostats can last up to 35 years, and programmable thermostats also last for many years. Since thermostats are some of the least expensive HVAC components and contribute to both home automation and energy savings, many homeowners replace their thermostats often in order to try out new technology.

Are any of your HVAC components nearing the end of their lifespan? Call your local HVAC professionals at McWilliams & Son Heating and Air Conditioning for experienced advice: 877-936-1974.

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