How Garrett’s Climate Affects the Lifespan of Your HVAC System

Living in Garrett, Indiana, means experiencing the full force of all four seasons; sometimes all in the same week. From humid summer afternoons to icy winter mornings, our weather keeps HVAC systems working hard year-round. 

What many homeowners don’t realize is that these local climate patterns can have a big impact on HVAC lifespans. No matter how well you maintain it, the life expectancy of your heating and air conditioning system isn’t just determined by the quality of the HVAC equipment or how often you schedule service—it’s also shaped by the area you live in.

As a local HVAC contractor, T&T Plumbing & Heating, Inc. sees how local weather patterns can affect the life of heating and cooling units. Understanding these factors can help you protect your system, avoid costly repairs, and get the most out of your investment.

The Freeze-Thaw Cycle: Winters Stress HVAC Systems

Garrett winters bring frequent freeze-thaw cycles where temperatures dip below freezing overnight and rise during the day. This constant temperature fluctuation can wreak havoc on both heating and cooling components.

For outdoor units, the expansion and contraction of metal parts can lead to small cracks in HVAC components or seal failures over time. On the heating side, your furnace may have to work harder and cycle more frequently, which adds wear to motors, belts, and heat exchangers. Even if your HVAC system is designed for tough conditions, repeated stress over multiple winters can cut into its expected lifespan.

Routine maintenance, including checking for loose connections, insulating exposed parts, and clearing snow and ice buildup, can help reduce the toll winter takes on HVAC lifespans.

Humidity Levels: A Year-Round Challenge

Humidity is another major factor in Garrett’s climate that influences HVAC performance and expected service life. During the summer, high humidity makes your air conditioner or heat pump work harder to pull excess moisture out of the air. This extra load can wear down mechanical equipment like compressors, fans, and coils faster than in drier climates.

In winter, humidity swings in the opposite direction. Indoor air often becomes too dry, which can cause seals and gaskets in your furnace or heat pump to degrade over time. The lack of moisture can also lead to static electricity, which can interfere with sensitive HVAC electronics.

Managing indoor humidity with a whole-home humidifier or dehumidifier can help balance the workload on your system, extending HVAC lifespans while keeping your home more comfortable.

Dust and Air Quality: The Rural Factor

Garrett is surrounded by open fields and agricultural activity, which means dust, pollen, and other airborne particles are a constant part of life here. These particles can easily get pulled into your HVAC system, where they clog filters, coat coils, and reduce energy efficiency.

Over time, poor air quality can make your system work harder, increase energy bills, and shorten HVAC lifespans. Dust buildup also creates an environment where mold and bacteria can grow, further impacting both system health and indoor air quality.

Changing your air filters regularly (which may be needed more frequently during planting and harvest seasons), along with scheduling regular maintenance, can help your HVAC system breathe easier and last longer.

Seasonal Temperature Extremes: Double the Wear

Garrett’s climate delivers the full spectrum of Midwest weather. We get hot, humid summers where temperatures push air conditioners to their limits, and bitterly cold winters that force heating systems into overdrive. This often means our HVAC systems run nearly year-round with little downtime to recover.

While systems in milder climates may only face extreme stress a few weeks each year, ours are put to the test in every season. This level of use naturally reduces HVAC lifespans compared to regions with less severe weather.

Choosing a high-quality, high-efficiency new system designed for continuous operation can help mitigate some of the wear from these extremes.

Storms and Power Fluctuations

Thunderstorms, windstorms, and the occasional ice storm are part of life in Garrett. Severe weather can lead to power outages or surges that damage HVAC electronics, control boards, and motors. Even if your system isn’t physically damaged, repeated exposure to electrical fluctuations can reduce component life.

Installing surge protection for your HVAC system can help shield it from these events, potentially adding years to its service life.

How Long Should Your HVAC System Last in Garrett, IN?

While every home and system is different, here’s a general idea of HVAC lifespans in our area:

  • Furnaces: 15–20 years with proper care, though heavy winter use can bring this closer to 12–15 years without maintenance.
  • Air Conditioners: 12–15 years, often shortened by high summer humidity and dust exposure.
  • Heat Pumps: 10–12 years, as they handle both heating and cooling demands.
  • Ductless Mini Splits: 15–20 years, depending on use and maintenance.

These estimates assume regular upkeep. Without it, the climate factors affecting our area can easily take several years off these numbers. 

Energy Efficiency and Lifespan

An older HVAC unit that’s still running might seem like a win, but age often comes with reduced efficiency. In Garrett, an inefficient system has to work even harder to maintain comfort, especially during seasonal extremes, which can accelerate wear. Upgrading to a newer, high-efficiency unit can lower your utility bills while reducing strain on your system and potentially extending the time before you need another replacement.

Proper Maintenance Is Your Best Defense

While Garrett’s climate poses unique challenges, regular preventive maintenance from T&T Plumbing & Heating, Inc. can help offset many of these issues. Our trained technicians know what to look for based on local conditions, whether it’s inspecting heat exchangers for freeze-thaw damage, checking for coil corrosion from high humidity, or clearing dust from sensitive components.

A twice-yearly tune up, once in spring for cooling and once in fall for heating, can significantly extend HVAC lifespans by catching problems early and keeping your system running at peak efficiency. A small investment in maintenance helps you save money, reduces repair costs, and gives you more time before you’re due for a new HVAC system.

Keep Your System Running Strong for Years to Come

Garrett’s climate is beautiful and varied, but it can be tough on HVAC systems. From freeze-thaw stress and humidity swings to dust and temperature extremes, local conditions play a major role in HVAC lifespans. The good news is that with regular care and expert help from T&T Plumbing & Heating, Inc., you can keep your heating and cooling system running strong for years to come.

If you want to protect your investment and get the most out of your HVAC system in Garrett, call T&T Plumbing & Heating, Inc. today to schedule a maintenance appointment. Our team understands the challenges of our local climate and can help you maximize both comfort and system longevity.