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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
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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 7 reviews
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Product Reviews
★★★★★ 5
Partition Wall
Color: Black, Size: 8' Wide x 30" Tall, Color: Black, Size: 8' Wide x 30" Tall
I ordered this to do a room divider for my grandkids can have there own space while sharing a room it gives the privacy the wall is very sturdy and heavy was easy to assemble the quality is great able to use individual or together for longer division great value for the money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
★★★★★ 5
Very pleased
Color: Black, Size: 8' Wide x 30" Tall
This works great, and I find it to be very effective at soundproofing. The hinge is good quality, and it rolls up easily. It is slightly on the heavier side, but that is to be expected considering its larger size. The materials used to make it are top quality, and it will last a long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 2, 2026
★★★★★ 5
Works perfectly for small to large rooms
Style: Haze 4D
I've used this from a large ballroom to a small social quarters. From a Halloween party to new years and birthday parties.
Make sure you get the correct remote "FC-T" some are getting packed with the old style that is not compatible
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2025
★★★★★ 5
Good product
Style: Haze 4D
This machine is a beast for the price. I use it mostly on film sets, but occasionally for stage.
It takes a bit to warm up, but will fill a room no problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2018
★★★★★ 4
Chauvet Hurricane Haze 4D
Style: Haze 4D, Style: Haze 4D
I’ve been a DJ for over 30 years and my lighting plays a big part in my show. I’ve used oil based fog machines which leave a residue and set off fire alarms. I’ve been using water based haze for the last 10 years and my Chauvet arena hazer finally bit the dust. I was hesitant about buying the Hurricane 4D because of the mixed reviews. After buying it and running some tests I found that you have to manually set the fan speed if you are using the wired remote. Also I found it works great if you don’t ask too much of it. I found that I can put it on continuous at roughly 20% volume and it fills and keeps the room full of haze. The haze is equivalent to a smokey bar. It allows your lights to project a cool looking beam for added effects. This hazer is about 1/4 the size of my Arena hazer but puts out about the same amount of haze. I found if you try for too much volume the heater can’t keep up and it spits and wastes haze fluid. But there is no reason for that to happen if you run it as I mentioned above. All in all I think it produces all the haze you will ever need just don’t push the hazer past it limits.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2020
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