Living in Ontario means enduring bitterly cold winters, which is why reliable heating solutions are a must for every home. They start with a furnace. Yet, despite them being in every home, most people don’t know how they function.
So, how does a furnace work? How does a gas furnace work and is it different from how an electric furnace works? What about oil furnaces?
We’ll answer these questions and more as we break down the inner workings of a furnace, demystifying its operation and explaining the key components that make your home a warm and welcoming haven during the cold winter months.
Let’s get into it!
There are different types of furnaces depending on the fuel source and the efficiency rating. The most common are gas furnaces, oil furnaces, and electric furnaces—they all heat air and distribute it throughout your home using ducts and vents.
Furnace fuel efficiency is measured by its Annual Fuel Utilization Efficiency (AFUE) rating, an indicator of how efficiently it converts fuel into heat. Higher AFUE ratings mean greater energy efficiency for additional cost savings and a reduced environmental impact.
But how do furnaces work to create this heated air? We’ll answer that next!
All furnaces need a fuel source to heat and distribute warm air throughout your home. How oil furnaces work is similar to how gas furnaces and electric furnaces work—the type of burning fuel they’re using is the only difference.
Essentially, what happens is they draw in cold air, pull it through the ducts, heat it using their specific fuel source, and then circulate the resulting warm air to your home.
As such, regardless of what type you have, something has gone wrong in this process if your furnace isn’t working. That’s when we recommend calling the professionals to assess the problem in order to get your unit back up and running.
How does a furnace work with so many parts? It’s a valid question.
We’ll narrow things down to the main components in this section to give you a concise flow of how a furnace works to convert cold into warm air:
Now that you know the basics of how a furnace works, let’s dive further into the furnace heating process that keeps your home warm during colder months.
How does a furnace work without a thermostat? If this is something you’ve been wondering, then we can provide a simple answer—they don’t!
Thermostats are the nerve centre of your home’s heating system. These devices control when and how much heat the furnace should deliver to meet the desired temperature.
A modern furnace paired with a smart thermostat can also:
If you were looking up: “How do furnaces work?” “How does a gas furnace work?” “How does an electric furnace work?” or “How does an oil furnace work?”, then we hope this article answered all your questions.
LG Home Comfort understands the importance of having a warm and snug home. Whether your gas furnace needs a check-up, your electric furnace is acting up, or your oil furnace could use some TLC, we have the solutions you need. Our team of industry-trained technicians will keep your heating system working efficiently all season long!
We offer a range of heating services for your 360° comfort, including: