Running out of furnace oil in the middle of winter is the last thing any Toronto homeowner wants. But how often should you refill your tank to stay warm and avoid emergencies?
Here’s a quick guide to help you plan ahead.
Average Furnace Oil Usage in Toronto Homes
Usage depends on your home’s size, insulation, and heating habits, but on average:
- Small homes: Refill every 6–8 weeks
- Medium homes: Every 4–6 weeks
- Large homes: Every 3–4 weeks
If your furnace runs frequently or you have poor insulation, expect to refill more often.
Signs Your Furnace Oil Tank Needs a Refill
- Your heating feels weaker or inconsistent.
- The gauge shows less than ¼ full.
- You smell fuel (air might be entering the lines).
- The furnace shuts off unexpectedly.
Checking regularly avoids damage to your pump system and ensures constant comfort.
Smart Tips to Save on Heating Costs
- Schedule automatic deliveries before cold snaps.
- Keep your furnace serviced annually.
- Install a tank monitor to track oil levels in real time.
Don’t wait until your tank runs dry.
Schedule your next furnace oil refill with Lambert Oil and stay warm all winter long.


