Finding the right kind of furnace for your specific needs can be tricky. Especially as so many options are now available, buyers can often be confused as to which models to choose and what are the key differences between different kinds of furnaces. As an expert from Arctic Breeze, I can definitely solve the challenge around differentiation. There are basically three types of furnace:


  • Single stage
  • Two-stage; and
  • Modulating Furnace


However, here we will evaluate what are the key differences between single and two stage furnaces.

Single stage furnace

A single stage furnace comes with two kinds of settings, the thermostat and the cycle. The thermostat in the house calls for heat which helps to switch on the furnace. Once it is on full power, the furnace reaches its maximum capacity, until the thermostat is satisfied and then shuts itself off. The cycle setting helps to get somewhat uneven heat around the house. Following this, the furnace emits blasts of warm air that gives temporary relief but are not exactly comfortable. A single stage furnace is not efficient in terms of energy but is quite an affordable option.

Two-stage furnace

The burner in a two-stage furnace can run at different levels as different burners are programmed differently. For instance, a burner may be programmed to run at 60 or 80 percent capacity. Two-stage burners are quieter but generate more heat through the house, as compared to its single stage counterpart. The long and gradual heating cycle eliminates rapid warming, unlike single stage furnace. In addition to this, the longer cycle provides improved air filtration as air cycles through the furnace air filter more times in a day, thus making air quality of your home better. Moreover, two-stage furnaces give buyers a great cost value benefit. Even though they are expensive than a single stage, they function quietly and efficiently.


Now that we know the major differences between the two types of furnace, which kind of furnace is right for you?


A lot goes in deciding the answer to this question. Generally, if you are planning to stay in your current home for more than five years, a modulating furnace works the best. Not only will it pay through savings within three to four years but will also continue heating for the next 10-12 years. If you are unsure about the duration of your stay, a two-stage option is the best. If you know that you will be changing houses immediately, a single stage furnace will do the needful for the time being.


The article was written by the experts from Arctic Breeze, reputed service providers and installers for quality HVAC, Air conditioning units and heaters.