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  1. Almost all furnaces today will have an efficiency above 80% AFUE, but if you want a high-efficiency furnace, look for furnaces with an efficiency above 90-95% AFUE. How is furnace energy efficiency measured? Furnace efficiency is measured in a unit called AFUE, which stands for Annual Fuel Utilization Efficiency. AFUE measures the number of ...

  2. Feb 15, 2024 · The government has mandated that all natural gas furnaces sold here must have an Annual Fuel Utilization Efficiency (AFUE) of 95%+. A high-efficiency model means lower energy bills. However, the difference between a 95 and 98% AFUE furnace won’t be all that much.

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  3. Efficiency and Performance. What is the AFUE Rating? The Annual Fuel Utilization Efficiency (AFUE) rating is a critical measure of a furnace’s efficiency, indicating the percentage of fuel converted into heat. In Canada, modern furnaces are required to have a minimum AFUE, usually around 80%.

  4. Jun 10, 2024 · Heat pumps are 300% more efficient than baseboard heaters and furnaces, and 50% more efficient than AC units. And, unlike most furnaces, they run on electricity, not gas (unless it’s a hybrid ...

  5. How a Furnace Works. A furnace operates by using a fuel source — usually natural gas, propane, electricity, or oil — to produce heat. The heat produced flows through a ventilation system and warms the home. Let’s look at a natural gas furnace for a detailed example.

  6. Jul 13, 2023 · The HVAC Service Solution team made a precise list of the best furnaces in Canada to keep you warm and save money on energy bills. We considered their AFUE rates, price, warranties, ENERGY STAR qualification, and special features to find out the most quality and energy-efficient units in the field.

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  8. Oct 16, 2023 · A natural gas furnace is the most common, utilizing gas which is ignited in the burner, producing hot combustion gases that pass through a heat exchanger. This heat is then transferred to the air, which is circulated through the ductwork. Advantages: Cost-effective and widely available.