What is the function of a variable-speed blower?

The function of a variable-speed blower is to adjust its speed based on heating or cooling demands. This capability allows the blower to operate more efficiently by using only the power necessary to meet the current heating or cooling requirements of the space. By modulating its speed, the blower can provide a consistent and comfortable airflow, minimizing energy consumption and enhancing temperature control.

This functionality contributes to improved system efficiency, quieter operation, and better humidity control compared to single-speed blowers, which only operate at one constant speed regardless of the demand. Variable-speed blowers can also help in achieving a more uniform distribution of conditioned air, which is beneficial for maintaining comfort throughout the entire space.