Tjernlund Products EF-12 Duct Fan
The Tjernlund Products EF-12 Duct Fan is a heavy-duty 12-inch inline booster fan engineered for professional HVAC applications where airflow velocity is critical. Built with a 24-gauge galvanized steel housing, this axial fan is specifically designed to overcome static pressure in long duct runs, delivering a free air rating of 875 CFM. It features a 1/35 HP shaded pole motor operating at 1500 RPM, optimized for maintaining air movement in both 12" flex duct and rigid metal systems.
As a veteran-grade HVAC duct booster, the EF-12 includes an external junction box for straightforward field wiring and a ribbed duct stop to ensure secure seating during installation. Whether you are addressing "dead zones" in a residential trunk line or configuring commercial ventilation exhaust for a warehouse or lunchroom, this unit handles airstream temperatures up to 150°F. For automated operation, contractors typically pair this model with a PS1503 Duct Airstat, which activates the booster fan based on pressure changes within the system.
Key Benefits- Maximum Airflow: Delivers 875 CFM free air and maintains 800 CFM through 25 feet of straight ducting to resolve temperature imbalances.
- Rugged Construction: Features a 24-gauge galvanized steel housing with a crimped leading edge for professional-grade durability.
- Versatile Application: Ideal for duct air supply, bathroom exhaust, or spot ventilation in pole barns and fume control systems.
- Installation Ease: Engineered with built-in duct stops for quick integration into 12-inch flexible or metal ductwork.
Is the EF-12 compatible with variable speed controllers?
Yes, this unit can be manually managed using a standard ON/OFF switch or a compatible electronic speed controller to fine-tune CFM output based on specific site requirements.
Can this fan be used for high-temperature exhaust?
The EF-12 is rated for a maximum inlet temperature of 150°F, making it suitable for standard forced air systems, but it should not be used in grease hoods or high-heat industrial flues.
Does this unit start automatically when the furnace turns on?
This is a standard model without an internal sensor. For automatic synchronization with the primary air handler, the use of a pressure-sensing duct airstat is required.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $228.13
-65%$228.13
$79.85Tjernlund Products EF-12 Duct Fan
The Tjernlund Products EF-12 Duct Fan is a heavy-duty 12-inch inline booster fan engineered for professional HVAC applications where airflow velocity is critical. Built with a 24-gauge galvanized steel housing, this axial fan is specifically designed to overcome static pressure in long duct runs, delivering a free air rating of 875 CFM. It features a 1/35 HP shaded pole motor operating at 1500 RPM, optimized for maintaining air movement in both 12" flex duct and rigid metal systems.
As a veteran-grade HVAC duct booster, the EF-12 includes an external junction box for straightforward field wiring and a ribbed duct stop to ensure secure seating during installation. Whether you are addressing "dead zones" in a residential trunk line or configuring commercial ventilation exhaust for a warehouse or lunchroom, this unit handles airstream temperatures up to 150°F. For automated operation, contractors typically pair this model with a PS1503 Duct Airstat, which activates the booster fan based on pressure changes within the system.
Key Benefits- Maximum Airflow: Delivers 875 CFM free air and maintains 800 CFM through 25 feet of straight ducting to resolve temperature imbalances.
- Rugged Construction: Features a 24-gauge galvanized steel housing with a crimped leading edge for professional-grade durability.
- Versatile Application: Ideal for duct air supply, bathroom exhaust, or spot ventilation in pole barns and fume control systems.
- Installation Ease: Engineered with built-in duct stops for quick integration into 12-inch flexible or metal ductwork.
Is the EF-12 compatible with variable speed controllers?
Yes, this unit can be manually managed using a standard ON/OFF switch or a compatible electronic speed controller to fine-tune CFM output based on specific site requirements.
Can this fan be used for high-temperature exhaust?
The EF-12 is rated for a maximum inlet temperature of 150°F, making it suitable for standard forced air systems, but it should not be used in grease hoods or high-heat industrial flues.
Does this unit start automatically when the furnace turns on?
This is a standard model without an internal sensor. For automatic synchronization with the primary air handler, the use of a pressure-sensing duct airstat is required.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Tjernlund Products EF-12 Duct Fan is a heavy-duty 12-inch inline booster fan engineered for professional HVAC applications where airflow velocity is critical. Built with a 24-gauge galvanized steel housing, this axial fan is specifically designed to overcome static pressure in long duct runs, delivering a free air rating of 875 CFM. It features a 1/35 HP shaded pole motor operating at 1500 RPM, optimized for maintaining air movement in both 12" flex duct and rigid metal systems.
As a veteran-grade HVAC duct booster, the EF-12 includes an external junction box for straightforward field wiring and a ribbed duct stop to ensure secure seating during installation. Whether you are addressing "dead zones" in a residential trunk line or configuring commercial ventilation exhaust for a warehouse or lunchroom, this unit handles airstream temperatures up to 150°F. For automated operation, contractors typically pair this model with a PS1503 Duct Airstat, which activates the booster fan based on pressure changes within the system.
Key Benefits- Maximum Airflow: Delivers 875 CFM free air and maintains 800 CFM through 25 feet of straight ducting to resolve temperature imbalances.
- Rugged Construction: Features a 24-gauge galvanized steel housing with a crimped leading edge for professional-grade durability.
- Versatile Application: Ideal for duct air supply, bathroom exhaust, or spot ventilation in pole barns and fume control systems.
- Installation Ease: Engineered with built-in duct stops for quick integration into 12-inch flexible or metal ductwork.
Is the EF-12 compatible with variable speed controllers?
Yes, this unit can be manually managed using a standard ON/OFF switch or a compatible electronic speed controller to fine-tune CFM output based on specific site requirements.
Can this fan be used for high-temperature exhaust?
The EF-12 is rated for a maximum inlet temperature of 150°F, making it suitable for standard forced air systems, but it should not be used in grease hoods or high-heat industrial flues.
Does this unit start automatically when the furnace turns on?
This is a standard model without an internal sensor. For automatic synchronization with the primary air handler, the use of a pressure-sensing duct airstat is required.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
