How to save money on your HVAC system this fall

Fall in Michigan means chilly mornings, mild afternoons, and that awkward back-and-forth between running the AC and flipping on the heat. If you’re not careful, those swings can send your energy bills climbing. The good news? A few smart HVAC moves can keep your home cozy while saving you money.

Here are the top energy-saving HVAC tips every metro Detroit homeowner should know this fall.

1. SET YOUR THERMOSTAT STRATEGICALLY

You don’t need the furnace cranked up all day. Set your thermostat to around 68°F when you’re home and lower it a few degrees when you’re sleeping or away. Every degree lower can cut your heating bill by up to 3%. A programmable or smart thermostat makes this effortless.

2. REPLACE YOUR AIR FILTER

A dirty filter forces your furnace to work harder, driving up energy use. Change your filter every 1–3 months during fall and winter. Clean filters also improve airflow and indoor air quality—win-win.

3. SEAL AIR LEAKS

Don’t let your warm air escape. Check windows, doors, and ductwork for leaks. Use weatherstripping, caulk, or insulation where needed. A properly sealed home holds heat better, which means less run time for your HVAC system.

4. SCHEDULE A FALL HVAC TUNE-UP

Think of it like a fall checkup for your furnace. A professional tune-up ensures burners, heat exchangers, and safety controls are working efficiently. Preventing breakdowns now saves you money—and stress—later in the season. Even better, when you join our Fahrenheit & Flow Service Plan, your fall maintenance is built right in. Members enjoy priority scheduling, annual tune-ups, and discounted repairs, so you can relax knowing your system is always ready for the Michigan cold.

5. USE YOUR CEILING FANS

Yes, fans in the fall! Set them to spin clockwise at a low speed. This pushes warm air (which rises) back down into your living spaces, reducing how often your furnace kicks on.

6. KEEP REGISTERS AND VENTS CLEAR

Blocked vents mean wasted energy. Move furniture, rugs, or curtains away from registers to let warm air flow freely. Balanced airflow = better comfort and efficiency.

7. LET THE SUN WORK FOR YOU

Open south-facing curtains during the day to let natural heat in, then close them at night to trap warmth inside. Free heat is the best kind.

FALL ENERGY SAVINGS START HERE

Lower energy bills don’t happen by accident—they come from smart habits and a little proactive care. At CMC Plumbing, Heating & Cooling, we help Oakland and Macomb County homeowners get the most out of their HVAC systems every season.

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Based in Madison Heights | Serving Metro Detroit

 📞 248-546-8800 | 📧 service@cmcphc.com

 🌐 www.cmcphc.com

Disclaimer: The information provided in this blog is for general educational and informational purposes only. Every home and system is different, and not all advice may apply to your specific situation. For personalized recommendations, code-compliant work, or professional service, please contact CMC Plumbing, Heating & Cooling. We’re licensed, experienced, and happy to help you get the job done right.