The most energy-efficient furnace is one that is ENERGY STAR certified and has an efficiency rating of 97% or higher. When you see an ENERGY STAR symbol on your appliance, you can be certain that it has been certified as energy efficient.
When it comes to the type of furnace, gas furnaces are typically the most energy-efficient. Although preferred in some situations, electric and oil furnaces are less efficient. Therefore, gas-powered furnaces are recommended.
The heating professionals at ProSolutions PHAC recommend the following high-efficiency furnaces:
