Available 24/7 for Emergency Heating and Cooling Services
As temperatures begin to drop across the St. Louis area, homeowners are shifting from air conditioning to heating. But making the switch isn’t always as simple as flipping your thermostat from the AC to heating. Without proper preparation, you could face performance issues, higher energy bills, or even unexpected breakdowns.
At Thomas Hoffmann Air Conditioning & Heating, we want your transition into fall and winter to be smooth, safe, and energy-efficient. Here’s what you need to know to switch your HVAC system from cooling to heating—without running into trouble.
Step 1: Change Your Thermostat Settings
This may seem obvious, but make sure to:
- Switch from “Cool” to “Heat” mode.
- Set the temperature a few degrees higher than the current room temp to test the heat.
- Use programmable settings to reduce energy use during the day or overnight.
Pro Tip: If you’re still using a manual thermostat, now is a great time to upgrade to a smart thermostat—ask us about professional installation options!
Step 2: Check and Replace Your Air Filters
Clogged filters reduce airflow and make your system work harder, which can:
- Decrease efficiency
- Shorten system lifespan
- Cause poor indoor air quality
Rule of Thumb: Replace filters every 1 to 3 months, or more often if you have pets or allergies.
Step 3: Inspect Vents and Registers
Walk through your home and:
- Make sure all supply and return vents are open and unblocked
- Clean dust or debris that may have built up over the summer
Blocked vents can lead to uneven heating and overworked equipment.
Step 4: Test Your Furnace Before You Really Need It
Turn on the heat now—before the first freeze—to make sure:
- The furnace turns on smoothly
- Warm air is coming through the vents
- No strange smells or noises occur
If something seems off, schedule a service call before busy season hits.
Step 5: Schedule a Fall HVAC Tune-Up
Annual maintenance is critical for system longevity, safety, and efficiency. Our comprehensive fall check-up includes:
- Inspecting the heat exchanger and burners
- Testing carbon monoxide levels
- Checking blower components
- Ensuring safe operation of ignition and combustion systems
Serving homeowners in Ballwin, Kirkwood, Wildwood, Chesterfield, and the greater St. Louis area, Thomas Hoffmann Air Conditioning & Heating is your trusted local expert.
BONUS: Don’t Forget the AC!
Before winter hits:
- Turn off the AC breaker or disconnect to avoid electrical damage
- Clean around the outdoor condenser
- Consider a cover to protect it from leaves and ice
Why Choose a Local HVAC Pro?
While national chains might seem convenient, they often rely on subcontractors and call centers. At Thomas Hoffmann Air Conditioning & Heating, our technicians live and work in the same St. Louis communities we serve. You get:
- Honest, upfront pricing
- Trusted local service
- Fast response times during fall and winter weather changes
Furnace Repair & Installation
Strange furnace noises or uneven heating? We service all major brands and offer repairs or replacements to restore comfort. Energy-efficient upgrades are also available to help lower heating bills.
Air Conditioning Repair & Replacement
If your AC isn’t cooling or cycling too often, we’ll diagnose and fix the issue quickly. We also install complete AC systems tailored to your home. Same-day service is frequently available.
Indoor Air Quality Solutions
Breathe cleaner air with whole-home purifiers, humidifiers, and ventilators. Our solutions reduce dust, allergens, and stale air—ideal for older homes or allergy-sensitive households.
HVAC Maintenance Plans
Keep your system running smoothly with a maintenance plan. We offer seasonal checkups to extend system life, prevent breakdowns, and help you stay prepared year-round.
1 thought on “How to Switch Your HVAC System from Cooling to Heating Without Issues”