How to Switch Your HVAC System from Cooling to Heating Without Issues

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