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Gas vs Electric Heating Systems in Ontario Homes

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Gas vs Electric Heating Systems in Ontario Homes

Posted On: March 4, 2026

Gas vs Electric Heating Systems in Ontario Homes

Choosing the right heating system is one of the most important decisions for homeowners in Ontario.


With long, cold winters and months of heavy furnace use, your heating system directly affects your home’s comfort, energy costs, and overall efficiency.


Two of the most common options for residential heating are gas and electric systems.


Each has its own advantages and disadvantages, and the best choice often depends on factors like home size, energy costs, and long-term efficiency goals.


Understanding the differences between gas and electric heating can help Ontario homeowners make an informed decision.


How Gas Heating Systems Work


Gas heating systems typically use a natural gas furnace to generate heat.


The furnace burns natural gas to produce heat, which is then distributed throughout the home using ductwork and vents.


Gas furnaces are widely used in Ontario because natural gas is commonly available and relatively affordable compared to electricity.


Modern high-efficiency gas furnaces can convert over 90 percent of their fuel into usable heat, making them a popular choice for colder climates.


These systems are designed to quickly heat homes even during extremely low outdoor temperatures.


How Electric Heating Systems Work


Electric heating systems generate heat using electricity rather than burning fuel.


There are several types of electric heating systems, including electric furnaces, baseboard heaters, and heat pumps.


Electric furnaces work similarly to gas furnaces but use electric heating elements instead of gas combustion.


Baseboard heaters and electric radiators heat individual rooms rather than the entire home through ductwork.


Electric heat pumps are becoming increasingly popular because they provide both heating and cooling while using less energy than traditional electric resistance heating.


Energy Efficiency Differences


Energy efficiency is often one of the biggest considerations when choosing between gas and electric heating.


Electric heating systems convert nearly all the electricity they use into heat, making them technically very efficient.


However, electricity itself is usually more expensive than natural gas in Ontario.


Gas furnaces, especially high-efficiency models, provide powerful heating while often costing less to operate over time.


For larger homes that require substantial heating throughout the winter, natural gas systems often result in lower monthly energy costs.


Heat pumps, however, can offer excellent efficiency and may reduce electricity usage compared to traditional electric heating systems.


Heating Performance During Cold Winters


Ontario winters frequently bring freezing temperatures and heavy snowfall.


In these conditions, heating performance becomes extremely important.


Gas furnaces are known for their ability to produce strong, consistent heat even during extremely cold weather.


They can quickly warm large homes and maintain comfortable indoor temperatures throughout long winter periods.


Some electric heating systems, particularly older models or baseboard heaters, may struggle to heat larger homes efficiently during very cold temperatures.


However, modern cold-climate heat pumps have improved significantly and can perform well in colder regions.


Installation and Equipment Costs


Initial installation costs can vary between gas and electric heating systems.


Gas furnaces often require additional infrastructure, such as gas lines and ventilation systems, which can increase installation costs.


However, many Ontario homes already have natural gas connections, making furnace replacement relatively straightforward.


Electric heating systems typically have lower installation costs because they do not require gas lines or combustion venting.


Electric baseboard heaters are especially affordable to install.


That said, lower installation costs may be offset by higher monthly energy expenses depending on electricity rates.


Maintenance Requirements


Both gas and electric heating systems require regular maintenance to ensure safe and efficient operation.


Gas furnaces require routine inspections to check burners, heat exchangers, and gas connections.


Professional maintenance is important for both performance and safety.


Electric heating systems generally have fewer mechanical components, which can mean less frequent maintenance.


However, systems like heat pumps still benefit from regular servicing to maintain efficiency and reliability.


Regardless of the system type, annual inspections are recommended before the winter heating season.


Environmental Considerations


Environmental impact is another factor many homeowners consider when choosing a heating system.


Electric heating systems produce no emissions inside the home because they do not burn fuel.


Depending on how electricity is generated, they may result in lower overall carbon emissions.


Gas furnaces rely on fossil fuels and produce emissions as part of the combustion process.


However, modern high-efficiency gas furnaces are significantly cleaner than older models and remain one of the most practical heating options for cold climates.


As renewable energy sources continue to grow, electric heating systems may become even more environmentally friendly in the future.


Which Heating System Is Best for Ontario Homes?


Both gas and electric heating systems can provide reliable warmth during Ontario’s cold winters.


The right choice depends on several factors, including energy costs, home size, existing infrastructure, and personal preferences.


Gas furnaces are often the preferred option for larger homes because of their powerful heating performance and lower operating costs.


Electric heating systems may be suitable for smaller homes, condos, or properties where natural gas service is unavailable.


Homeowners considering a new heating system should consult with a qualified HVAC professional to evaluate their home’s heating needs and determine the most efficient option.


Final Thoughts


Ontario homeowners rely heavily on their heating systems to stay comfortable throughout the winter.


Understanding the differences between gas and electric heating can help you choose the right system for your home.


Whether upgrading an older furnace or installing a new heating system, selecting the right equipment and maintaining it properly can improve comfort, reduce energy costs, and keep your home warm during even the coldest months.



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See What Our Customers Are Saying:

by Peter, Pickering on Twintech Heating and Cooling

On coldest night of the year our furnace quit. At 8:40 in the morning Greg arrived and gave us a diagnosis and a recommendation. By 2:30 we had a new furnace and were warm again. Great company. Great customer service. Good reasonable price.

Peter, Pickering

by New Furnace Installed on Twintech Heating and Cooling

Twin tech team was very efficient and prompt. They provided a quote within hours of request and got the job done on time. No disruption to home function. We would highly recommend this team. Job well done.

by John from Toronto on Twintech Heating and Cooling

Our furnace bit the dust, and Twintech came out to troubleshoot and diagnose the problem within a couple of hours. Mitch was super helpful, patient, and answered all of our questions. When we decided to get the furnace replaced, the crew was over first thing the next morning and did a fantastic job. Not only did they complete the job in a few hours, but they cleaned up and respected our house as they went, and answered all of our follow-up questions. I've used Twintech for our HVAC needs in the past and will continue to do so. I'd recommend them to anyone, and it feels good to support a local, family-owned business.

by Ryan k on Twintech Heating and Cooling

Dave and the Twintech team were fabulous from day 1 and helped us through the process to identifying a new furnace and AC unit. This was our first time through this process and Dave did a thorough job explaining all the components and was very patience answering all our questions. Dave provided great insights and fair pricing.

The Twintech team did an awesome installation. Very clean and efficient. I would highly recommended their service.

by Louise in Scarborough on Twintech Heating and Cooling

We had a new Amana furnace installed by Twintech and we were very pleased with the installation. It is nice to have a warm house again.

by Private User on Twintech Heating and Cooling

Excellent job. Excellent service. Competitive price. Its rare to find a company with the knowledge and professional results we have experienced with Twintech. The clean and neat installation with attention to detail and drop sheers to respect our property is a clear indication of Twintechs high level of integrity. The 1-1/2 gas line upgrade they did for our pool 3 years ago was awesome. Can't say enough. Thank-you Twintech.

by Private User on Twintech Heating and Cooling

Twitch did a great job with the installation of our new furnace. I really appreciated their honesty and I could trust what they were telling me. Another company tried to suggest significantly more work at a greater cost claiming it was necessary to meet current building code. Twintech is very fair. All staff I meet were friendly, polite and trustworthy. I would recommend Twitch for a furnace.

by Private User on Twintech Heating and Cooling

This is a professional team that's easy to deal with. I would strongly recommend them

by hj.taggart in OSHAWA on Twintech Heating and Cooling

Very professional firm from start to finish!
They removed the old oil tank and furnace. They installed air conditioning and a new propane furnace.
Professional installation, on time and no mess.
Very pleased with their work and would highly recommend the company. Our house is three stories so they spent the time to do all the calculations to make sure we would have great performance on each floor.
Thank you again!

by susieschoeppler in Oshawa on Twintech Heating and Cooling

Upon a routine yearly maintenance, it was discovered there was a leak in the heat exchanger and a I needed a new furnace. I know nothing about these things and was completely stressed out. The company I had the maintenance plan with quoted me a huge number to rent a furnace, I just wanted to cry. Then I spoke to Dave at Twintech. He was so knowledgeable and calming, provided me a fair quote and within a few days I had an amazing crew show up to my house and install my new energy efficient furnace! I have already recommended these wonderful people at Twintech to a good friend of mine. Thank you Twintech!!

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See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.

by Linda on Twintech Heating and Cooling

Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

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