Tjernlund Products V2D Crawl Ventilator
The Tjernlund V2D UnderAire Crawl Space Ventilator is a high-capacity mechanical ventilation solution engineered to mitigate crawl space moisture and improve structural integrity. Delivering 220 CFM of airflow via twin maintenance-free fans, this unit is designed to mount directly behind standard 8-inch x 16-inch foundation vents. By facilitating active air exchange, the Tjernlund V2D prevents the accumulation of stagnant air that leads to wood rot, fungal growth, and plumbing corrosion. This model features an integrated adjustable dehumidistat with a 20% to 80% RH range, allowing for precise control over humidity levels to combat condensation. Additionally, a factory-installed freeze protection thermostat shuts down the fans when temperatures drop below 40°F (cycling back on at 50°F) to prevent frozen pipes. For technicians managing radon mitigation or off-gassing from treated lumber, the V2D crawl space fan provides a consistent exhaust path to move soil gases and odors out of the building envelope before they migrate into living areas.
Key Benefits- 220 CFM output provides sufficient air exchange for large crawl spaces or areas with high moisture loads.
- Integrated dehumidistat and freeze protection thermostat automate operation based on real-time environmental conditions.
- Galvanized steel faceplate (18" x 9") is trimmable down to 14" x 6" for non-standard foundation openings.
- Aided radon gas removal and reduction of volatile organic compounds (VOCs) through continuous exhaust ventilation.
- Pre-wired with a 6-foot grounded power cord for rapid installation without the immediate need for hardwiring.
How many V2D units are required for a specific square footage?
To calculate the ventilation rate, determine the total cubic volume of the crawl space and divide by 15. A single Tjernlund V2D is typically rated for approximately 1,100 square feet at a 3-foot height, though sites with higher humidity may require additional units to achieve effective moisture control.
Can these fans be used for supply air instead of exhaust?
Yes, the reversible fan assemblies allow the unit to be configured for either exhaust or supply. For optimal cross-ventilation, technicians often install the V2D as an exhaust fan on one side of the foundation while using passive vents or supply fans on the opposite side to balance the static pressure.
Will the freeze protection prevent the fan from running in the winter?
The built-in thermostat is designed to interrupt the circuit when outdoor air temperatures reach 35°F to 40°F. This is a critical safety feature to prevent the intake of freezing air which could lead to pipe bursts in unconditioned spaces.
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: $207.68
-65%$207.68
$72.69Tjernlund Products V2D Crawl Ventilator
The Tjernlund V2D UnderAire Crawl Space Ventilator is a high-capacity mechanical ventilation solution engineered to mitigate crawl space moisture and improve structural integrity. Delivering 220 CFM of airflow via twin maintenance-free fans, this unit is designed to mount directly behind standard 8-inch x 16-inch foundation vents. By facilitating active air exchange, the Tjernlund V2D prevents the accumulation of stagnant air that leads to wood rot, fungal growth, and plumbing corrosion. This model features an integrated adjustable dehumidistat with a 20% to 80% RH range, allowing for precise control over humidity levels to combat condensation. Additionally, a factory-installed freeze protection thermostat shuts down the fans when temperatures drop below 40°F (cycling back on at 50°F) to prevent frozen pipes. For technicians managing radon mitigation or off-gassing from treated lumber, the V2D crawl space fan provides a consistent exhaust path to move soil gases and odors out of the building envelope before they migrate into living areas.
Key Benefits- 220 CFM output provides sufficient air exchange for large crawl spaces or areas with high moisture loads.
- Integrated dehumidistat and freeze protection thermostat automate operation based on real-time environmental conditions.
- Galvanized steel faceplate (18" x 9") is trimmable down to 14" x 6" for non-standard foundation openings.
- Aided radon gas removal and reduction of volatile organic compounds (VOCs) through continuous exhaust ventilation.
- Pre-wired with a 6-foot grounded power cord for rapid installation without the immediate need for hardwiring.
How many V2D units are required for a specific square footage?
To calculate the ventilation rate, determine the total cubic volume of the crawl space and divide by 15. A single Tjernlund V2D is typically rated for approximately 1,100 square feet at a 3-foot height, though sites with higher humidity may require additional units to achieve effective moisture control.
Can these fans be used for supply air instead of exhaust?
Yes, the reversible fan assemblies allow the unit to be configured for either exhaust or supply. For optimal cross-ventilation, technicians often install the V2D as an exhaust fan on one side of the foundation while using passive vents or supply fans on the opposite side to balance the static pressure.
Will the freeze protection prevent the fan from running in the winter?
The built-in thermostat is designed to interrupt the circuit when outdoor air temperatures reach 35°F to 40°F. This is a critical safety feature to prevent the intake of freezing air which could lead to pipe bursts in unconditioned spaces.
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 V2D UnderAire Crawl Space Ventilator is a high-capacity mechanical ventilation solution engineered to mitigate crawl space moisture and improve structural integrity. Delivering 220 CFM of airflow via twin maintenance-free fans, this unit is designed to mount directly behind standard 8-inch x 16-inch foundation vents. By facilitating active air exchange, the Tjernlund V2D prevents the accumulation of stagnant air that leads to wood rot, fungal growth, and plumbing corrosion. This model features an integrated adjustable dehumidistat with a 20% to 80% RH range, allowing for precise control over humidity levels to combat condensation. Additionally, a factory-installed freeze protection thermostat shuts down the fans when temperatures drop below 40°F (cycling back on at 50°F) to prevent frozen pipes. For technicians managing radon mitigation or off-gassing from treated lumber, the V2D crawl space fan provides a consistent exhaust path to move soil gases and odors out of the building envelope before they migrate into living areas.
Key Benefits- 220 CFM output provides sufficient air exchange for large crawl spaces or areas with high moisture loads.
- Integrated dehumidistat and freeze protection thermostat automate operation based on real-time environmental conditions.
- Galvanized steel faceplate (18" x 9") is trimmable down to 14" x 6" for non-standard foundation openings.
- Aided radon gas removal and reduction of volatile organic compounds (VOCs) through continuous exhaust ventilation.
- Pre-wired with a 6-foot grounded power cord for rapid installation without the immediate need for hardwiring.
How many V2D units are required for a specific square footage?
To calculate the ventilation rate, determine the total cubic volume of the crawl space and divide by 15. A single Tjernlund V2D is typically rated for approximately 1,100 square feet at a 3-foot height, though sites with higher humidity may require additional units to achieve effective moisture control.
Can these fans be used for supply air instead of exhaust?
Yes, the reversible fan assemblies allow the unit to be configured for either exhaust or supply. For optimal cross-ventilation, technicians often install the V2D as an exhaust fan on one side of the foundation while using passive vents or supply fans on the opposite side to balance the static pressure.
Will the freeze protection prevent the fan from running in the winter?
The built-in thermostat is designed to interrupt the circuit when outdoor air temperatures reach 35°F to 40°F. This is a critical safety feature to prevent the intake of freezing air which could lead to pipe bursts in unconditioned spaces.
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.
