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Tjernlund UnderAire™ Crawl Space Ventilator — Deluxe One Crawl Space Fan, 110 CFM, Model# V1D

Item# 250745
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Tjernlund UnderAire™ Crawl Space Ventilator — Deluxe One Crawl Space Fan, 110 CFM, Model# V1D

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Was $89.99
Sale $84.99

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  • Deluxe one-fan ventilator
  • Built-in dehumidistat
  • Freeze protection thermostat
  • Sealed bearing motor for long life
  • Mounts into ventilation openings in block foundations
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Product Summary

Fan-powered ventilator quickly reduces moisture in crawl spaces to protect home and occupants. Increases air circulation to prevent condensation, mold, mildew and wood rot. Also helps vent radon gas, treated wood gases and odors, preventing them from migrating into living areas.

What's Included
  • (1) Deluxe one-fan ventilator
  • Screws and masonry wall anchors
Banish Damp Crawl Spaces

Banish Damp Crawl Spaces

Ventilation is the Answer

The Tjernlund UnderAire™ fan-powered ventilator protects your home and family by quickly reducing moisture in crawl spaces. This increased air circulation prevents mold, mildew, condensation and wood rot. It also helps vent radon gas, treated wood gases and odors, preventing them from entering your living spaces and threatening your family’s health.

Built Tough

This Tjernland deluxe one-fan crawl space ventilator is sturdily built from heavy-gauge galvanized steel and is equipped with a sealed bearing fan motor rated for continuous duty. This is the only crawl space ventilator with a special ETL Safety listing “suitable for damp locations.”

Simple to Install and Use

The one-fan ventilator features a trimmable galvanized steel faceplate, so it’s easy to fit into any space. It typically mounts into ventilation openings in block foundations. Ventilator can be installed in minutes with the pre-installed power cord and included hardware packet. Fan is equipped with built-in automatic humidity control and freeze control thermostat. The controls are easy to use and understand. The UnderAire ventilator will instantly go to work, drawing out moisture from your crawl space.

How Many Ventilators Will I Need?

Calculate the cubic area of the crawl space by multiplying the length x width x height (in feet). Divide this number by 15 to determine the minimum CFM required to fully ventilate the space in 15 minutes. For example, this one-fan crawl space ventilator delivers 110 CFM and will ventilate a 1,650 cubic foot area in 15 minutes.

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Warranty Protection

This heavy-duty Tjernlund crawl space ventilator is built to last. But to give you extra peace of mind, you are protected with a one-year limited warranty on this product.

Expert Answers are Available

Northern Tool + Equipment is here to help you succeed. Our field-trained, dedicated team of experts is ready to help — call or email and you’ll get a prompt response.

Guaranteed Satisfaction

Shop in complete confidence, knowing that Northern Tool + Equipment protects your investment and is ready to provide you with the assistance and helpful resources you need.

1 Year Consumer Limited Warranty

Features + Benefits

  • Deluxe one-fan ventilator
  • Built-in dehumidistat
  • Freeze protection thermostat
  • Sealed bearing motor for long life
  • Mounts into ventilation openings in block foundations
  • Galvanized faceplate can be trimmed to fit
Key Specs
Item# 250745
Brand Tjernlund
Manufacturer's Warranty 12 months limited parts / No labor
Ship Weight 6.16 lbs
Air Delivery (CFM) 110
Speeds (qty.) 1
Amps 0.3
Volts 115
Power Cord (ft.) 6
Remote Included No
Dimensions W x D x H (in.) 18 x 9 x 2

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Replacement Parts
Call To Order: 1-800-657-0516

Mon - Fri 7:00 AM - 6:00 PM (Central)
Sat 7:00 AM - 3:00 PM (Central)

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Tjernlund UnderAire™ Crawl Space Ventilator — Deluxe One Crawl Space Fan, 110 CFM, Model# V1D The price is $84.99.
Tjernlund UnderAire™ Crawl Space Ventilator — Deluxe One Crawl Space Fan, 110 CFM, Model# V1D
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Hide Similarities
Air Delivery (CFM)
110 110 220 220 160
Speeds (qty.) 1 1 1 1 -
Amps
0.3 0.3 0.6 0.6 0.8
Volts
115 115 120 110 120
Watts
- - 40 - 50
Power Cord (ft.) Hardwired 6 6 6 6
Remote Included No No No No -
Dimensions W x D x H (in.) 14 3/8 x 6 7/8 x 2 18 x 9 x 2 18 x 10 x 2 18 x 9 x 2 11 x 14 1/2 x 8 1/2