Fort Collins winters can dip into the single digits, and when they do, a properly maintained gas furnace feels like a lifeline. At Fort Collins Heating and Air, we’ve been the go-to experts for reliable furnace repair and maintenance across Larimer County since 2003.
On this page, we’ll cover:
• How gas furnaces differ from electric units and why that matters for service
• The most common furnace issues we fix in Fort Collins homes
• Our seasonal maintenance checklist and best practices
• What to expect during a repair or tune-up
• Local climate factors and energy-saving tips
Get in touch today if your gas furnace needs service!
We are big enough to serve, small enough to care. Contact us to schedule your furnace installation today.
When you call us, you’re signing up for a no-surprises experience. Here’s how we keep your service smooth and transparent:
Gas vs. Electric Furnaces: What Sets Them Apart
Your choice of heating system impacts not only your utility bills but also how you care for it. Here’s how gas and electric furnaces differ—and why it matters when scheduling repairs or maintenance.
Operation:
• Gas furnaces use natural gas combustion in a burner assembly to heat air
• Electric furnaces rely on electric-resistance heating elements
Key Components Unique to Gas Furnaces:
• Burner assembly and ignition system (pilot light or electronic ignitor)
• Heat exchanger and combustion chamber
• Gas valve and control module
• Flue or chimney for venting combustion byproducts
Gas furnaces need:
• Regular flue and heat-exchanger inspections (cracks, blockages)
• Gas-line leak tests to spot leaks early
• Carbon-monoxide safety checks for proper ventilation
An electric furnace, by contrast, has no combustion, flue, or gas lines—maintenance is limited to filter changes, blower inspections, and element testing.
Ignition Failures
– Pilot light won’t stay lit or electronic ignitor won’t spark
– You may hear repeated clicking or see a blinking error code
Yellow or Lazy Burner Flame
– Flame should be crisp blue; yellow indicates carbon buildup or poor airflow
– Can lead to soot deposits, reduced efficiency, and higher bills
Short-Cycling
– Furnace turns on and off in rapid succession
– Often caused by an oversized unit, clogged filter, or restricted return vents
Unpleasant Odors
– A rotten-egg smell can signal a gas leak—evacuate immediately. Call your gas company and call us.
– “Burning dust” odor on first heat-up is normal; persistent smell needs attention
Uneven Heating
– Rooms that are too hot or cold point to duct leaks, insulation gaps, or a mis-calibrated thermostat
Carbon-Monoxide Alerts
– CO detector beeps or symptoms like headaches/dizziness appear—evacuate immediately. Call your gas company and call us.
– We perform a full flue/heat-exchanger inspection to nip risks in the bud
Sticking to a biannual maintenance routine keeps your furnace running safely and efficiently. Here’s our professional checklist for pre-winter and pre-summer service:
Fort Collins’ unique environment puts extra demands on your gas furnace. Here’s what you need to know:
High Elevation (≈5,000 ft)
• Thinner air reduces oxygen for combustion—proper gas-to-air mixture adjustment is critical.
• We calibrate burner orifices and gas pressures so your furnace operates at peak efficiency.
Temperature Swings & UV Exposure
• Freeze-thaw cycles expand and contract heat-exchanger seams, so we inspect for early signs of stress or cracks.
• Strong sun and UV can degrade exterior vent materials—part of our routine check.
Dust, Pollen & Windstorms
• Pollen season and prairie dust intrude on filters and blower components. We recommend MERV-rated filters and more frequent changes.
• After high-wind or hail events, we inspect flue caps and intake vents for damage.
When winter temperatures plunge, you deserve reliable heat and clear pricing—no surprises.
Ready to lock in year-round comfort?
• Call us now at (970) 317-2484or fill out our online form to schedule an appointment
• Schedule your tune-up online in under a minute
Don’t wait until the first freeze—partner with us today to keep your home safe, efficient, and warm.
Offer Expires 11/30/26
Offer Expires 11/30/26
Offer Expires 11/30/26
