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HVAC Tips

Why Your Heater Seems to Run Nonstop in December

December in Elkton brings chilly mornings, cold nights, and often, a heater that never seems to stop. If your energy bills are rising and your HVAC system feels like it’s running constantly, you’re not imagining it. Cold weather, drafts, and system inefficiencies can all contribute to longer run times.

Here’s why your heater is overworking this winter—and what you can do to fix it.

Why Your Heater Runs Nonstop

  1. Cold Outdoor Temperatures – The colder it gets outside, the more effort your heater needs to maintain a warm indoor temperature.
  2. Thermostat Settings or Placement – Thermostats near vents, windows, or heat sources may misread room temperature, causing your system to overwork.
  3. Dirty Air Filters – Clogged filters restrict airflow, forcing your heater to run longer to warm your home.
  4. Drafty Areas – Leaky doors, windows, or poor insulation allow warm air to escape and cold air to enter.
  5. Fan Settings – If your fan is set to “On” instead of “Auto,” it may continue circulating air even after the heater reaches the set temperature.

Simple Fixes You Can Try

  • Check Thermostat Settings: Ensure the fan is on “Auto” and the temperature is comfortable but not excessive.
  • Replace or Clean Air Filters: This improves airflow and reduces runtime.
  • Seal Drafts: Weatherstrip doors and windows to keep warm air in.
  • Check Vents: Make sure furniture or curtains aren’t blocking airflow.

When to Call the Experts

If your heater continues to run nonstop despite these steps, it may indicate a deeper issue like duct leaks or a malfunctioning component. Professional attention ensures efficiency, comfort, and prevents costly repairs.

Let Aire Serv of Elkton Help

At Aire Serv of Elkton, our trained technicians diagnose HVAC systems that run too long, optimize performance, and improve energy efficiency. From thermostat calibration to duct inspections and system tune-ups, we keep your home comfortable all winter long. Contact us today to schedule a check-up!

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About Aire Serv

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At Aire Serv, we strive to keep the air in which we live and breathe comfortable and clean, so people live healthier, happier lives. Since 1992, our brand has stood for excellence and putting customers first. When you see the name Aire Serv, you can expect quality services and customer attention. With over 200 locations across the United States and Canada, Aire Serv is a trusted name in the field of heating and air conditioning installation, maintenance, and repair.

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