
Tjernlund Products EF-14 Duct Fan
The Tjernlund Products EF-14 Duct Fan is a heavy-duty 14-inch inline duct booster engineered to rectify airflow deficiencies in high-capacity residential and commercial HVAC ventilation systems. Built with a 24-gauge galvanized steel housing and ribbed duct stops, this 120V axial fan delivers a powerful 1200 CFM free air rating to overcome static pressure in long "trunk line" runs or large-diameter flexible ducting. Operating at 1500 RPM with a 1/25 HP shaded pole motor drawing 1.70 Amps, the EF-14 is designed for continuous duty in environments up to 150°F. It serves as an essential component for balancing temperatures in hard-to-reach zones or as an industrial exhaust fan for non-combustible air. Unlike smaller models, the EF-14 can be mounted directly into main supply lines or branch ducts, utilizing its crimped leading ends for a secure, airtight fit in galvanized metal ductwork or flex-runs. For automated operation synchronized with the primary air handler, this unit is compatible with the PS1503 pressure-sensing airstat.
Key Benefits- Maximum Airflow Delivery: Rated at 1200 CFM to significantly boost velocity in 14" diameter systems.
- Rugged Construction: Features a 24-gauge galvanized steel housing with crimped ends for rapid inline installation.
- High Temperature Tolerance: Safely handles air temperatures up to 150°F, suitable for both heating and cooling cycles.
- Trunk Line Versatility: High-torque motor design allows for placement in main supply trunks, not just branch lines.
- Professional Grade Reliability: Utilizing a 1/25 HP motor designed for long-term service in demanding HVACR applications.
Can the EF-14 be used for kitchen range or combustible exhaust?
No, this unit is designed strictly for boosting conditioned air or venting non-combustible fumes. It is not rated for grease-laden air or high-heat combustion byproducts.
How do I control the fan automatically?
While the fan requires a 120V hardwired connection, it is typically paired with a Tjernlund PS1503 Duct Airstat, which senses duct pressure to trigger the fan only when the main blower is active.
Is this fan compatible with speed controllers?
The EF-14 features a 1500 RPM shaded pole motor; if variable speed is required, ensure the controller is compatible with inductive motor loads to prevent humming or premature motor failure.
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: $286.86
-65%$286.86
$100.40Tjernlund Products EF-14 Duct Fan
The Tjernlund Products EF-14 Duct Fan is a heavy-duty 14-inch inline duct booster engineered to rectify airflow deficiencies in high-capacity residential and commercial HVAC ventilation systems. Built with a 24-gauge galvanized steel housing and ribbed duct stops, this 120V axial fan delivers a powerful 1200 CFM free air rating to overcome static pressure in long "trunk line" runs or large-diameter flexible ducting. Operating at 1500 RPM with a 1/25 HP shaded pole motor drawing 1.70 Amps, the EF-14 is designed for continuous duty in environments up to 150°F. It serves as an essential component for balancing temperatures in hard-to-reach zones or as an industrial exhaust fan for non-combustible air. Unlike smaller models, the EF-14 can be mounted directly into main supply lines or branch ducts, utilizing its crimped leading ends for a secure, airtight fit in galvanized metal ductwork or flex-runs. For automated operation synchronized with the primary air handler, this unit is compatible with the PS1503 pressure-sensing airstat.
Key Benefits- Maximum Airflow Delivery: Rated at 1200 CFM to significantly boost velocity in 14" diameter systems.
- Rugged Construction: Features a 24-gauge galvanized steel housing with crimped ends for rapid inline installation.
- High Temperature Tolerance: Safely handles air temperatures up to 150°F, suitable for both heating and cooling cycles.
- Trunk Line Versatility: High-torque motor design allows for placement in main supply trunks, not just branch lines.
- Professional Grade Reliability: Utilizing a 1/25 HP motor designed for long-term service in demanding HVACR applications.
Can the EF-14 be used for kitchen range or combustible exhaust?
No, this unit is designed strictly for boosting conditioned air or venting non-combustible fumes. It is not rated for grease-laden air or high-heat combustion byproducts.
How do I control the fan automatically?
While the fan requires a 120V hardwired connection, it is typically paired with a Tjernlund PS1503 Duct Airstat, which senses duct pressure to trigger the fan only when the main blower is active.
Is this fan compatible with speed controllers?
The EF-14 features a 1500 RPM shaded pole motor; if variable speed is required, ensure the controller is compatible with inductive motor loads to prevent humming or premature motor failure.
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-14 Duct Fan is a heavy-duty 14-inch inline duct booster engineered to rectify airflow deficiencies in high-capacity residential and commercial HVAC ventilation systems. Built with a 24-gauge galvanized steel housing and ribbed duct stops, this 120V axial fan delivers a powerful 1200 CFM free air rating to overcome static pressure in long "trunk line" runs or large-diameter flexible ducting. Operating at 1500 RPM with a 1/25 HP shaded pole motor drawing 1.70 Amps, the EF-14 is designed for continuous duty in environments up to 150°F. It serves as an essential component for balancing temperatures in hard-to-reach zones or as an industrial exhaust fan for non-combustible air. Unlike smaller models, the EF-14 can be mounted directly into main supply lines or branch ducts, utilizing its crimped leading ends for a secure, airtight fit in galvanized metal ductwork or flex-runs. For automated operation synchronized with the primary air handler, this unit is compatible with the PS1503 pressure-sensing airstat.
Key Benefits- Maximum Airflow Delivery: Rated at 1200 CFM to significantly boost velocity in 14" diameter systems.
- Rugged Construction: Features a 24-gauge galvanized steel housing with crimped ends for rapid inline installation.
- High Temperature Tolerance: Safely handles air temperatures up to 150°F, suitable for both heating and cooling cycles.
- Trunk Line Versatility: High-torque motor design allows for placement in main supply trunks, not just branch lines.
- Professional Grade Reliability: Utilizing a 1/25 HP motor designed for long-term service in demanding HVACR applications.
Can the EF-14 be used for kitchen range or combustible exhaust?
No, this unit is designed strictly for boosting conditioned air or venting non-combustible fumes. It is not rated for grease-laden air or high-heat combustion byproducts.
How do I control the fan automatically?
While the fan requires a 120V hardwired connection, it is typically paired with a Tjernlund PS1503 Duct Airstat, which senses duct pressure to trigger the fan only when the main blower is active.
Is this fan compatible with speed controllers?
The EF-14 features a 1500 RPM shaded pole motor; if variable speed is required, ensure the controller is compatible with inductive motor loads to prevent humming or premature motor failure.
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.












