NATE Gas Heating Practice Exam

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What is the horsepower range of residential heating blower motors?

1/8 to 1/16 hp
1/4 to 1/2 hp
1/2 to 2 hp
3/4 to 2 hp

The correct answer is: 1/4 to 1/2 hp

The horsepower range for residential heating blower motors is typically between 1/4 to 1/2 horsepower. This range is suitable for the demand and efficiency required in most residential heating systems, which need adequate airflow to distribute heat throughout the home effectively. Motors in this range provide a balance of power and energy efficiency, allowing them to operate effectively without excessive energy consumption. While other horsepower ranges mentioned may apply to different types of motors used in larger commercial systems or specialized applications, they are not commonly found in the residential setting, where the heating load and airflow requirements are generally met within the 1/4 to 1/2 hp range. This makes the 1/4 to 1/2 hp output ideal for the operation of standard blower fans in residential applications.