Of all the features available in high-efficient and high-performance furnaces, variable speed is one of the most beneficial. Variable speed furnaces provide high efficiency and comfort. Most blower fans on furnaces run at a constant speed and are either on or off. Variable speed will increase or decrease fan speed to meet heating needs. Today we’re going to take a look at how this blower works and some of the best advantages of installing a variable speed furnace in your home!
How are They Different?
In low-efficiency furnaces, the blower motor only operates at one speed. This speed is programmed before the furnace is installed. That means that if two homes were to install the same model of furnace, their air handles would operate at the same high speed. They would still run at the same high speed even if their airflow requirements were dramatically different.
A variable speed furnace, on the other hand, operates at multiple different speeds. This allows the furnace to adapt to the airflow requirements of a home at any given time. The blower will always operate at the lowest required speed and adjust to a higher speed when more airflow is needed.
The Benefits of a Variable Speed Furnace
Lower Energy Costs
Because the furnace is continually adapting to airflow requirements, it never overworks itself. Variable speed furnaces regulate operations to meet heating needs. It consumes less energy than a single-speed furnace. This leads to lower operating costs throughout your furnace’s lifetime.
The fan runs at lower speeds making a quieter atmosphere in your home.
Constant Circulation of Air
These furnaces push air thru the furnace filter to remove particulates. This process improves air quality.
Improved Temperature and Humidity Control
Variable speed furnaces maintain indoor air temperature with precision. One speed furnaces cannot do this. The traditional furnace gets to temperature and then shuts off until the temperature drops again. A variable speed blower operates more consistently and more often than a single-speed blower. This allows your home’s air to cycle through your humidifier more often, which leads to better indoor humidity control.
Lower Chance of Breakdowns and Longer Operating Life
A furnace with a variable speed blower does not cycle on and off as often as a furnace with a single-speed blower. This puts less stress on your system, which helps decrease the chance of breakdowns. In addition to experiencing fewer breakdowns than a single-speed furnace, a variable speed furnace will last longer because it goes through less wear-and-tear every heating season.
Proudfoot Plumbing, Heating, and Air
A furnace with a variable speed fan works well with other high-efficient upgrades like zoned heating controls or smart thermostats. If you have any questions about the advantages of a variable speed furnace, or if you’d like a heating system serviced or installed in your home, you can always call on Proudfoot Plumbing, Heating, and Air. Call us at 1-412-461-2198 or contact us here!
Photo: B. Hale Plumbing