If you want to lower your heating bill this winter, the good news is that many of the most effective steps are free or cheap. Heating is one of the biggest household energy costs in Canada, and long, cold winters mean small inefficiencies add up quickly. Whether you heat with natural gas, electricity, oil or a heat pump, this guide covers practical changes you can make right now, plus bigger upgrades worth planning for.
Why heating bills climb so fast in a Canadian winter
Your heating bill depends on three things: how much heat your home loses, how efficiently your system replaces it, and the price of the energy you use. You cannot control energy prices, but you can influence the first two. Warm air escapes through gaps around windows and doors, poorly insulated attics and walls, and even electrical outlets on exterior walls. Every bit that leaks out has to be replaced by your furnace, boiler, baseboards or heat pump.
Free ways to lower your heating bill
Turn the thermostat down when you can
Lowering the temperature while you sleep or are away from home is one of the simplest ways to save. Even a couple of degrees makes a difference over a full season. A cozy blanket, warm socks and a sweater make a lower indoor temperature much more comfortable.
Use the sun
Open curtains and blinds on south-facing windows during sunny days to let in free heat, then close them at night to keep it in. Heavy or insulated curtains add an extra layer of protection against cold glass.
Keep vents and radiators clear
Furniture, rugs and long curtains blocking vents or baseboard heaters reduce how well heat circulates. Move them a little so warm air can flow freely.
Close off unused spaces carefully
Closing doors to rooms you rarely use can help, but avoid shutting vents completely in forced-air systems without checking your system’s guidance, since this can affect airflow and efficiency.
Watch hot water use
Water heating is another large energy cost. Shorter showers, washing clothes in cold water and fixing dripping hot water taps reduce how hard your water heater works.
Low-cost fixes with a fast payback
- Weatherstripping around doors and operable windows to stop drafts.
- Caulking gaps around window frames, baseboards and where pipes or cables enter the house.
- Door sweeps on exterior doors, especially the door to an unheated garage.
- Foam gaskets behind outlet and switch covers on exterior walls.
- Window insulation film for older single-pane or drafty windows.
- Furnace filter changes on the schedule recommended by the manufacturer, as a clogged filter makes the system work harder.
A simple way to find drafts is to hold your hand, or a stick of incense, near window and door edges on a windy day. Moving air or smoke shows where to seal.
Get more from your heating system
Regular maintenance helps any heating system run efficiently and safely. Have your furnace, boiler or heat pump serviced by a qualified technician according to the manufacturer’s recommendations, ideally before the coldest weather arrives. Make sure outdoor heat pump units and exhaust vents stay clear of snow and ice.
Also check that a working carbon monoxide alarm is installed near sleeping areas if you have any fuel-burning appliance. Saving energy should never come at the expense of safety.
Consider a programmable or smart thermostat
A programmable thermostat automatically lowers the temperature when you sleep or leave, and raises it before you wake up or come home. Smart models add remote control from your phone and usage reports. They are one example of how smart technology is transforming modern homes, and they can be a practical first upgrade.
Bigger upgrades worth planning for
| Upgrade | What it does | Good to know |
|---|---|---|
| Attic insulation | Reduces heat loss through the roof, often the biggest leak | A common, cost-effective upgrade in older homes |
| Air sealing | Closes hidden gaps in the building envelope | Best done before or alongside insulation work |
| Energy-efficient windows and doors | Reduces drafts and heat loss through glass | Higher upfront cost; compare quotes and certifications |
| High-efficiency furnace or heat pump | Produces more heat from the same energy | Ask about performance in cold climates before buying |
A professional home energy evaluation can show where your home loses the most heat and which upgrades will pay off first. Federal, provincial and utility programs that help with these costs change over time, so check what is currently available on the Government of Canada website and with your provincial energy agency or utility before you commit.
Shop smart for upgrades
Seasonal sales can be a good time to buy items such as smart thermostats, weatherstripping kits or space heaters, but not every discount is a real deal. Our guide on how to spot real Black Friday deals in Canada explains how to compare prices before you buy. If you use portable space heaters, choose certified models with automatic shut-off and keep them well away from anything flammable.
Do not forget your car
Winter costs are not only about the house. Block heaters, tire changes and battery checks all affect your winter budget too. Our winter car checklist for Canada covers what to prepare before the deep freeze.
FAQ
What temperature should I set my thermostat to in winter?
There is no single right number. Many households set a comfortable temperature while home and lower it at night and when away. Adjust gradually to find a balance between comfort and savings.
Is it cheaper to leave the heat on all day?
Generally, lowering the temperature when you are out or asleep uses less energy than keeping it constant. Heat pump owners should follow the manufacturer’s guidance, as large setbacks can be less efficient for some systems.
Do space heaters save money?
They can help if you heat one room and lower the main thermostat, but heating a whole home with space heaters is rarely efficient. Always use them safely.
What is the quickest way to reduce drafts?
Weatherstripping doors and windows, adding door sweeps and caulking visible gaps are fast, inexpensive fixes most people can do themselves.