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Gas vs Electric Heating Systems in Ontario Homes
Posted On: March 4, 2026
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:
Sep 5, 2022
Our hot water tank died and with an after hours phone called Bob the sales guy jumped into action. Friendly, courteous and genuinely wanted to do whats best for our house hold we were given options and he awaited an answer with no pressure.
We decided on what we wanted and it was installed asap and Greg and team worked and cleaned up so well, you would never know there was a hot water tank there before!
We love our hot water tank and being able to have back to back to back showers without having to wait for the hot water tank to heat the water!
Sep 4, 2022
I had heard of Twin Tech from a good friend of mine.
I needed to get a new Air Conditioner. It was not working properly and was 19 years old. I decided to get a new furnace at the same time.
I gave them a call on Saturday June 28.
I spoke to Bob Graham. I made arrangements for him to attend my house the following day.
I saw him on Sunday June 29 at 1100 AM.
He was on time and looked professional.
He spent 2 hours with me going over what I needed. He also suggested that I purchase a Humidifier. He gave me a quote of just under $11,000.00 for the purchase and installation of a Air Conditioner, Furnace and Humidifier. He was not pushy and gave me time to speak to my wife.
I called Bob on Monday June 30 and made arrangements to have it installed by the end of the week.
On Friday June 3 they arrived at 830 AM.
Again, right on time.
Greg and Mitch worked all day and finished the installation by 430 PM.
They made sure that everything was working properly and the basement was just as clean as it was before they came.
I will now be using Twin Tech to perform any maintenance needed on this equipment.
I was completely satisfied from start to finish with the service provided.
Thank You,
Gary Grieves.
Upchurch Ave.
Ajax.
Sep 3, 2022
We contacted TwinTech after having another ductless air-conditioning company come in to quote on a solution for our townhouse. We had a unique problem where my office was a hot spot - it's at the front of the unit and gets a lot of sun. If it's 20C outside, It's 29C in my office. The other company could not build a solution that would get a ductless unit to that room because of the location - the AC unit would have to be at the rear, and ductless systems would have to be on that side of the interior. TwinTech suggested a hybrid solution to fit our unique problem, where the ductless unit would move cold air to an air exchanger installed in our bedroom closet, and then they built a ducted vent system between all the upper rooms. This was less intrusive than building a central air system, and less expensive. Each room has a vent that I can close off, so I can push more cold air to my office when needed. We really didn't want ductless units sitting on the walls, and this looks and works better. I really appreciate the extra thought and care that went into the design of a solution, and the attention to detail in the installation. They answered all of our questions, and were able to do a bit extra by installing the ducts around the vents and painting them for us. It cost more than we originally planned for, due to our unique needs, but the fact that they offered financing helped us budget for more.
The job was done fast (I think we got lucky with timing where it wasn't the AC install busy season yet), and the team was very friendly and professional. They arrived and finished each day when they said they would. My office is now running at a comfortable temperature! I'm extremely happy with the experience and would whole heartedly recommend them.
Sep 2, 2022
How lucky are we to have this team come save us from our broken down, under sold, poorly installed previous unit (mind you there is a reason SEARS went bankrupt). Bob arrived on time to give us a detailed review of our unit and furnace; very knowledgeable. Greg arrived as planned with the new unit and reiterated what Bob explained how our furnace is equipped to handle the new unit and we didnt need to spend more money on a variable speed air conditioner. Cant say enough on how professional, efficient and personable this team is. Thank you so much guys!
Sep 1, 2022
We used Twintech for our replacement AC. Bob did a great job assessing what we needed and organized the install and showed up on install date. Greg and Mitch were on time and were very neat. They covered the traffic areas with a drop cloth and did an excellent install. Great clean up after install complete. Would recommend Twintech for heating and cooling.
Aug 31, 2022
They were fantastic, clean, freindly, great service. Would definitely recommend. Answered ally questions and more.
Aug 30, 2022
We woke up at about 7 a.m. the Sunday morning before Valentine's Day to a house that was barely 15 degrees Celsius on a really cold day. We tried to call some other suppliers but no answer or call back. We did a quick google search and Twintech came up. Had never dealt with them before. They had a chat line and lo & behold, someone answered; Greg. Helped us diagnose that our 40 year old furnace pilot light was out and walked us through how to relight it. All worked well; he even called me during this process. No charge I was told when asked.
15 minutes later, the pilot went out. It would not stay lit. Greg had Bob call us and we set up a meeting for about 11 a.m. that same Sunday.
Bob walked us through the options and even brought 3 electric space heaters for us to use. By Tuesday afternoon, we had a new Furnace and central air installed.
The team was helpful, responsive and respectful. Very glad we found them by accident and looking forward to a nice cool summer after a warm winter.
Thanks guys!
Aug 29, 2022
Dealing with Bob and the installation crew was a pleasure. They took the time to explain everything. What would benefit us the most and the price difference. They were in and out in a reasonable time frame and fit us in within a couple days of original meeting. Quality of work is excellent as well.
Aug 28, 2022
A pleasure dealing with Bob ,Spencer and Mitch . They are professional and they also observe the covid 19 precautions . Bob explained the whole process and got the new furnace up the next day . Highly recommend
Aug 27, 2022
Would like to thank TwinTech for their quick response to our furnace repair. We used TwinTech to install a new furnace and AC a few years
back. Our furnace started to have problems early in the evening of extremely cold night. Contacted TwinTech and they were able make a service call later that evening. They got the furnace going and came the next day to replace a part. The part was under warranty and there was
no charge for either service call!
We are extremely happy with their customer service and would highly recommend them.
Gary & Kelly
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