A big share of rural properties around King Township and the outer edges of Newmarket and Aurora aren’t on the natural gas line, and run on oil or propane furnaces instead. The maintenance routine for these systems overlaps with a standard gas furnace in some ways, but has a few requirements that a generic “replace your filter” checklist doesn’t cover.
1. Check Your Fuel Level Before It’s an Emergency
An empty oil tank or a propane tank that’s run low is the single most common “no heat” call we get from rural properties — and it’s easy to prevent with a fuel delivery schedule instead of waiting for a gauge to hit empty in January.
2. Book an Annual Oil Tank Inspection
Oil tanks need to be checked for leaks, rust, and water contamination in the fuel — issues that don’t exist with gas or propane at all. A tank inspection alongside your furnace tune-up catches problems before they become a mid-winter no-heat call or, worse, a fuel spill.
3. Replace the Oil Burner Nozzle on Schedule
Oil furnaces use a nozzle that atomizes fuel for combustion, and it wears out faster than most homeowners expect. A worn nozzle causes inefficient combustion, soot buildup, and eventually ignition failure — replacing it annually is standard practice, not an upsell.
4. Have the Chimney and Venting Inspected
Oil furnaces vent differently than gas systems, and a partially blocked chimney or flue is a more common cause of shutdowns on oil systems than on gas. This is worth a dedicated check, not an assumption that “it vented fine last year.”
5. Replace Your Filter on Schedule Regardless of Fuel Type
A clogged filter restricts airflow and forces the blower motor to work harder no matter what’s burning to heat the air. Check it monthly during the heating season.
6. Watch for Warning Signs Specific to Oil and Propane
A burner that won’t ignite smoothly, visible soot around the furnace, or an odour that’s stronger than usual are all worth a call — these systems give different warning signs than a gas furnace’s short-cycling or pilot light issues.
The Bottom Line
Oil and propane furnaces are reliable, but they need a maintenance routine built around fuel delivery, tank condition, and burner wear — not just the standard gas-furnace checklist. If you want us to handle that on a schedule, take a look at our maintenance plans — or call us any time your system needs attention now.