Gas vs Propane vs Electric Furnaces: Ontario Homeowner's Guide

Natural gas is the cheapest fuel for furnace operation in Ontario at $700-900 annually for a typical home. Propane costs $1,200-1,800 annually, while electric furnaces cost $1,500-2,500+ annually. However, availability matters—natural gas isn't available in all rural areas. If natural gas is at your property line, it's usually the most economical choice. For rural properties without gas access, propane is typically more cost-effective than electric.

Yes. Propane is the most common alternative for rural Ontario properties without natural gas access. Installation costs $4,000-$6,500+ including a storage tank (500-1000 gallons). Tanks can be purchased ($1,500-$3,000) or rented. Propane furnaces offer the same high efficiency as natural gas (96-98.5% AFUE) and can also power water heaters, stoves, and backup generators. Delivery is scheduled based on usage and weather forecasts. We can help arrange tank installation and fuel delivery.

Electric furnaces are 100% AFUE efficient—all electricity becomes heat. However, they have very high operating costs in Ontario ($1,500-2,500+ annually) due to electricity rates. They also provide slower, less powerful heat than gas or propane. For most Ontario homeowners, electric furnaces are not recommended as primary heat unless you have very cheap electricity (e.g., from solar panels) or as backup for a heat pump system. Consider a cold-climate heat pump instead—it provides both heating and cooling with much higher efficiency.

Electric furnaces have the lowest upfront cost at $2,500-$4,500 installed. Natural gas furnaces cost $3,400-$5,500. Propane furnaces cost $4,000-$6,500+ (plus tank costs). However, operating costs tell a different story: natural gas saves $400-600 annually compared to propane and $800-1,600 compared to electric. Over 10 years, natural gas is significantly cheaper despite higher upfront costs for some installations. We provide detailed cost comparisons during free consultations.

Since 2010, Ontario building codes require all new gas and propane furnace installations to be high-efficiency with minimum 96% AFUE ratings. Standard efficiency furnaces (80% AFUE) are no longer permitted. Modern furnaces achieve 96-98.5% AFUE, meaning only 1.5-4% of fuel is wasted. Electric furnaces are rated at 100% AFUE but have higher operating costs due to electricity prices. Always verify that your new furnace meets Ontario's 96% AFUE requirement.

Propane is typically the best choice for rural Ontario properties without natural gas access. While propane costs more than natural gas ($1,200-1,800 vs $700-900 annually), it's significantly cheaper than electric ($1,500-2,500+). Propane also provides fast, powerful heat suitable for Ontario winters and can power multiple appliances (water heater, stove, dryer, generator). If natural gas expansion is planned for your area, choose a dual-fuel furnace that can be converted later for $300-600.

Natural gas has the lowest emissions among fossil fuels but still produces CO2. Propane burns cleaner than oil but produces more CO2 than natural gas. Electric furnaces have zero on-site emissions, but environmental impact depends on Ontario's electricity grid (which includes nuclear, hydro, wind, solar, and some gas). For the lowest carbon footprint, consider a cold-climate heat pump which can be 300-400% efficient and use Ontario's relatively clean electricity grid. Heat pumps also qualify for rebates up to $7,100.

With proper annual maintenance, gas and propane furnaces last 15-20 years. Electric furnaces typically last 20-25 years with minimal maintenance. However, electric furnaces' longer lifespan doesn't offset their much higher operating costs. For most Ontario homeowners, a gas or propane furnace will be more cost-effective over its lifetime despite a slightly shorter lifespan, due to annual fuel savings of $800-1,600 compared to electric. Regular maintenance is key to maximizing lifespan.

Yes. Many modern high-efficiency furnaces are dual-fuel capable and can be easily converted between propane and natural gas. Conversion typically costs $300-$600 and includes burner orifice replacement, gas valve adjustment, pressure regulator changes, and safety inspection. This flexibility is valuable for rural homeowners who may get natural gas service in the future. Always choose a dual-fuel furnace if natural gas expansion is possible in your area. We can perform the conversion when gas becomes available.

Yes, especially if you're considering electric heat. Modern cold-climate heat pumps can provide both heating and cooling with 300-400% efficiency—much higher than electric furnaces. They work efficiently in Ontario winters down to -25°C and can reduce heating costs by 30-50% compared to electric furnaces. With rebates up to $7,100, heat pumps are an increasingly popular alternative. Hybrid systems (heat pump + gas furnace backup) offer the best of both worlds: heat pump efficiency for mild weather and furnace reliability for extreme cold.