Prepare furnace for winter
Replace filter, test thermostat, check vents before first cold snap.
Burners: Behind the upper panel, fed by the copper gas line and its valve. Servicing these is a technician's job — they are shown here so you know what is being worked on.
How to do it
We've put together a search for current, well-rated walkthrough videos for this exact job.
Watch how-to videosCommon questions
How often should you prepare furnace for winter?
Once a year. Best in fall.
How much does it cost to prepare furnace for winter?
Typically $10 to $30 in parts and supplies. Skipping it risks roughly $200 in repair or replacement costs.
How long does it take?
About 30 min.
Can I prepare furnace for winter myself?
Yes — this is a straightforward job for most homeowners with basic tools.
Which of these does your home actually need?
Answer a few questions about your home and HomeGuard builds your personalized maintenance schedule — the right tasks, at the right time of year, for your appliances and climate.
Build my free scheduleMore heating & cooling maintenance
Replace HVAC air filter
Every 3 months · 10 min
Annual HVAC professional tune-up
Once a year · 2 hrs (pro)
Clean outdoor AC condenser
Once a year · 1 hr
Clear AC condensate drain line
Once a year · 30 min
Vacuum vents and return grilles
Every 3 months · 30 min
Check thermostat batteries & schedule
Twice a year · 15 min