Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
110 CFM Power Crawl Space FanThe Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated
The Tjernlund UnderAire Series V1 Crawl Space Ventilator is designed to circulate fresh outdoor air underneath homes and porches. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. Humidity may also cause plumbing failures due to rust and corrosion. Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas.- Excess moisture can cause mold, mildew and wood rot; under air fans increase air circulation to fight condensation
- Calculate the cubic area of the crawl space by multiplying the length x width x height; divide this number by 15 to determine the minimum CFM necessary to fully ventilate the space in 15 minutes
- 1-fan and small faceplate forventilation openings through brickfoundations (requires switch or dehumidistatto activate)
- 110 CFM to circulate fresh outdoor air underneath homes and porches
- Ventilator models are equipped with a factory installed and pre-wired thermostat which will prevent operation of the fan below 35°F outdoor temperature; normal operation of the fan will resume once the temperature outside rises near 50°F
- Constant operation helps vent radon gases, treated wood off-gassing and other odors that might migrate into living areas
- 1-fan and small face plate forventilation openings through brick foundations
- Ventilators are installed inside crawl space behind existing ventilation opening; screws and masonry wall anchors are included
- Efficient
Features
| Item Weight | 4 |
| Wildlife Guard | Yes |
| Voltage (volts) | 115 |
| Ventilation Type | Exhaust |
| Airflow (CFM) | 110 |
| Recommended Sq. Ft. | 1500 |
| Thermostat Controlled | Yes |
| Color/Finish Family | Metallic |
| Returnable | 180-Day |
| Horsepower (hp) | .01 hp |
| Material | Galvanized Steel |
| Amperage (amps) | 0.30 A |
| Color Family | Metallic |
| Product Weight (lb.) | 4 lb |
| Product Height (in.) | 14 in |
| Cut-Out Diameter (in.) | 162 |
| Product Depth (in.) | 2 in |
| Product Width (in.) | 7 in |
| Manufacturer Warranty | 1 Year |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 883 reviews
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Product Reviews
★★★★★ 1
Not playtime resistant
This toy is for less exuberant dogs. Mine destroyed it in less than 10 minutes.
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Reviewed in the United States on March 26, 2026
★★★★★ 5
Wonderful
Wonderful
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Reviewed in the United States on February 27, 2026
★★★★★ 5
Durable dog toy
These tall tails natural dog leather toys are great for my dogs. And even the stronger dogs who come to visit can't destroy them as fast as the other toys. The pups all have their favorite whether it is the log, the fox, or the bone.
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Reviewed in the United States on November 1, 2025
★★★★★ 5
High quality!
High quality toy! Made with strong materials. My pup loves his lil chipmunky!
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Reviewed in the United States on October 18, 2025
★★★★★ 5
Great dog toy!
Love these Tall Tails critters! They are very durable!
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Reviewed in the United States on August 16, 2025
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