Armstrong 74K77 Furnace Draft Inducer Blower

The Furnace Draft Inducer Blower, Armstrong 74K77, is a dependable component designed to optimize furnace venting and combustion. This Draft Inducer Blower is intended for use on compatible furnaces and features clockwise rotation to ensure consistent airflow and reliable startup.

Designed for standard electrical setups, it operates at a voltage rating of 208–230 V AC, 60 Hz, 1-Phase. The unit draws 0.6 A of current and delivers a power rating of 1/30 HP, with a speed of 3000 RPM for steady, controlled venting.

Compatible with a range of furnace configurations, the Armstrong 74K77 provides dependable draft induction and quiet operation when integrated with your heating system. Selecting the right draft inducer helps prevent venting issues and supports overall furnace efficiency.

• Type: Draft Inducer Blower
• Rotation: Clockwise
• Voltage: 208–230 V AC, 60 Hz, 1-Phase
• Current: 0.6 A
• Power: 1/30 HP
• Speed: 3000 RPM
• Used On: Furnace