High Quality Sealed Ball Bearing Motor – Powerful, Quiet, Superbly Balanced, Energy Efficient and Long Lasting. Features – Variable Speed Switch to regulate Air Flow, Combined with the automatic power activation of a Heat Sensor. Specifications – Length x Width x Height (w/ bracket): 12.75″ x 4.5″ x 4.2″, Length x Width x Height (w/o bracket): 12.75″ x 4″ x 4″, Air discharge length: 4.75 (each blower), Motor and Outboard Bearing Type: Ball, Motor RPM: 3000, Airflow in C. M: 160, Volts: 115, Frequency: 60 Hz, Amperage: 1.3, Insulation: Class H (rated to 392°F), Thermostat Temperature: 120° / 90°, Blade Material: Composite, Frame Material: Black powder coated steel. Does it fit your fireplace? – See BRAND and MODEL # Listed in Below Product Descriptions.