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When Should You Switch from AC to Heat?

As summer fades and cooler mornings creep in, many homeowners are left wondering: when is the right time to switch from air conditioning to heating? It’s a seasonal balancing act. Turn the heat on too early, and you might waste energy. Wait too long, and you’re stuck with a chilly home. So how do you know when it’s time?

Here are a few key signs—and tips for making the transition safe and smooth.

1. Your Mornings Are Starting Off Cold

If you’re waking up to temperatures in the low 60s (or colder) inside your home, it’s probably time to consider heating. Even if your afternoons still feel warm, your HVAC system can be programmed to heat only during certain hours. This keeps your mornings cozy without wasting energy when the sun comes out.

A smart thermostat is especially helpful during transitional weather. It can automatically adjust based on your schedule and temperature preferences—keeping you comfortable while reducing energy use.

2. You’ve Swapped Out Your Summer Wardrobe

Still reaching for a blanket every night? If the flip-flops are gone and the sweaters are out, your home’s temperature should reflect the season, too. When daily highs drop below 70°F consistently, it’s safe to make the switch.

Before you flip that thermostat to “heat,” take a moment to test your system. Turn it on for a short cycle and make sure warm air is coming from the vents. If something seems off—odd smells, strange sounds, or no heat—it’s time to call a professional.

3. You Haven’t Had a Furnace Check in Over a Year

Before running your furnace for the season, it’s smart to schedule a tune-up. Fall is the ideal time to have your system inspected, cleaned, and tested. A yearly check ensures everything runs efficiently and helps catch minor issues before they become expensive repairs.

Service One Heating provides thorough seasonal tune-ups across Omaha, Dubuque, and surrounding areas. Our certified techs check for gas leaks, clean your burners, test airflow, and make sure your furnace is safe and ready for action.

4. You’re Noticing Higher Utility Bills

Inefficient heating and cooling during transitional months can drive up energy costs. If your AC is working too hard to cool a space that doesn't need it—or your heating is cycling inefficiently—it’s time for a system check.

Switching over early and using programmable settings helps avoid overlap and energy waste. If your system is older or struggling to keep up, Service One Heating can recommend energy-efficient upgrades that keep your home comfortable and your bills lower.

5. It Just Feels Like Fall

Sometimes, the best sign is simply how your home feels. If it’s damp, chilly, or uncomfortable despite a working AC, it’s time to let your furnace take over.

Trust Service One Heating for a Seamless Transition

Whether you’re in Omaha or Dubuque, Service One Heating is here to help you move confidently into the cooler season. From furnace tune-ups to smart thermostat installs, we make the switch from AC to heat stress-free and safe.

Schedule your fall furnace checkup today and head into winter with confidence.

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