Energy-Saving HVAC Tips for Lower Gas Bills in Vancouver
Published: July 12, 2026 — CANRO Heating & Cooling — Greater Vancouver, BC
Thermostat Strategy
Program your thermostat to lower the temperature by 3-5°C when you are sleeping or away from home. Each degree of setback over an 8-hour period can reduce your heating bill by 1-3%. A programmable or smart thermostat automates this process. The Department of Energy recommends 20°C when you are home and awake, and 17°C when you are asleep or away. Contrary to common belief, it is more efficient to set back the temperature and reheat your home than to maintain a constant temperature.
Air Filter Maintenance
A dirty air filter is the most common cause of reduced furnace efficiency. When airflow is restricted, the furnace blower works harder, and heat transfer is less effective. A clean filter allows your system to move air freely, reducing energy consumption by up to 15% compared to a heavily clogged filter. Check your filter monthly during peak heating and cooling seasons. Replace disposable filters or clean reusable ones when they appear dirty. Write the installation date on the filter frame as a reminder.
Seal Air Leaks
The average Vancouver home loses 25-40% of its heated air through gaps and cracks. Check for drafts around windows and doors using a candle flame or your hand on a cold, windy day. Apply weatherstripping to door frames and window sashes. Caulk gaps around electrical outlets on exterior walls, baseboards, and where pipes enter the home. Seal ductwork joints with UL-listed foil tape or duct mastic — duct tape is not effective for this purpose. Exposed ductwork in unconditioned spaces like crawl spaces and attics is the biggest source of duct leakage.
Equipment Upgrade Considerations
If your furnace or boiler is over 15 years old, upgrading to a modern high-efficiency model will reduce your gas consumption by 20-40%. A furnace rated at 60% AFUE (typical for 1990s-era equipment) wastes 40 cents of every gas dollar. A modern 95%+ AFUE furnace wastes only 5 cents. For a home spending $1,500 annually on gas heating, the upgrade saves approximately $525 per year in gas costs alone. Combined with FortisBC rebates for high-efficiency equipment, the payback period can be as short as 5-7 years.
Behaviour Changes That Cost Nothing
Open curtains and blinds on south-facing windows during sunny winter days to capture free solar heat. Close them at night to reduce heat loss through the glass. Keep interior doors open to allow warm air to circulate throughout your home. Use bathroom and kitchen exhaust fans sparingly — each minute a 100 CFM fan runs, it exhausts a roomful of heated air. Dress warmly indoors so you can keep the thermostat a degree or two lower. A sweater and socks are the cheapest energy efficiency upgrade available.