Tjernlund V2D UnderAire Crawlspace Ventilator Fan: Reduce Moisture and Mold, 220 CFM

By: Tjernlund

The Tjernlund V2D UnderAire Crawlspace Ventilator Fan is the perfect solution for reducing moisture and mold in your home. With a powerful 220 CFM capacity, it's one of the best HVAC Ducting solutions available. Installation and maintenance is easy, and you can rest assured knowing you have the support of the Tjernlund customer service team. With its durability and dependability, this fan is sure to last.

Key Features:

Underaire Crawlspace Ventilation Fans are designed to reduce moisture and mold in standard block foundations. These 40 watt fans are maintenance free and deliver 220 CFM of air flow.
87
B2B Rating
24 reviews

Review rating details

Value for money
94
Quality of material
95
Packaging
72
Overall satisfaction
97
Length
98
Easy to maintain
95
Easy to install
92
Durability
98
Customer support
95

Details of Tjernlund V2D UnderAire Crawlspace Ventilator Fan: Reduce Moisture and Mold, 220 CFM

  • Date First Available ‏ ‎: January 2, 2008
  • Air Flow Capacity: 220 Cubic Feet Per Minute
  • Material: Wood
  • HVAC Ducting: HVAC Ducting
  • Customer Reviews: 4.5/5 stars of 743 ratings
  • Voltage: 120 Volts
  • Manufacturer ‏ ‎: Tjernlund
  • Brand: Tjernlund
  • Wattage: 40 watts
  • Is Discontinued By Manufacturer ‏ ‎: No
  • Item model number ‏ ‎: V2D
  • Building Materials: Building Materials
  • Best Sellers Rank: #103 in HVAC Ducting#3,013 in Building Materials
  • ASIN ‏ ‎: B000N4WOWK
  • Product Dimensions ‏ ‎: 12.8 x 22 x 4.7 inches; 6.4 Pounds
  • Country of Origin ‏ ‎: USA

Comments

Gregory H. Talley: My friend installed it for me because it's difficult for me to bend and turn in small spaces. I'm a senior citizen with disabilities from my 30 year military service.

United States on Oct 20, 2023

William: I considered making my own but the cost for me to make one was more than the cost of two of these! The important feature is the humidistat. Set it where you want to maintain the humidity level and that's it! It shuts off at 35F so no worries about a cold air draft freeing your pipes.

United States on Sep 09, 2023

jpatton: This was needed to keep my crawl space drier after extensive water related issues were treated under my bedroom. Because this was a poorly done addition to this house, the crawl space is very low. Therefore the foundation vents are only about a foot beneath the subfloor. This fan is actually under my bed area. I can hear a gentle whirring noise when it is on. I choose to think of it as white noise, and it really doesn’t bother me. I know it’s helping pull moisture out, which is important, so I choose to not be bothered by the sound. The wiring is behind my wall.

United States on Jul 20, 2023

AdrianAdrian: We had our crawlspace encapsulated last year and they didn't install an exhaust fan. Pretty soon we started to get the "cat pee" smell in the house that a lot of people seem to experience, which is actually ammonia being released from the soil. I didn't want to pay to have them come back and install a fan (which they should have done originally, but I didn't know that at the time), so I bought the Tjernlund V2D to install myself.

When I unboxed the fan it looked good and didn't feel cheap. I noticed that the frame was a little warped, but it easily flattened out when I screwed it in place, so this wasn't a big deal. Installation was pretty easy, but will vary depending on your situation. The vent opening I chose was larger than the fan, so I used some scrap plywood to make a frame. I secured the wood frame to the cinderblock with concrete screws and then secured the fan to the wood frame. I had to run a short extension cord to reach an outlet. Not ideal, but the fan has a very low amp draw.

We have a dehumidifier in the crawlspace (part of the encapsulation) and I was only concerned with evacuating the ammonia, so I set the fan to always run and it's been running...

United States on Jul 01, 2021

M. Dowdie: I was concerned by some reviewers that said the ventilator was too loud. I am very sensitive to noises, especially mechanical ones. The ventilator I received is not loud at all. It is audible in the crawlspace and for a few feet just outside the vent, but I wouldn't consider it loud even standing right next to it. I can't hear it inside the house, even standing directly over where it is mounted.

To be cautious about sound and vibration, I used some weatherstripping between the ventilator and the block wall where it is mounted and also used rubber washers on the screws. I now believe none of that was necessary and noise would not have been an issue even without those precautions.

I have no reason to doubt that the ventilator is moving its rated CFM of air, but it is certainly not producing a gale force wind. I haven't had it installed long enough to know if it will really impact the temperature or humidity level in my crawlspace.

Update:

I've now noticed that when the house is very quiet and I'm in the room directly above the ventilator, I can hear it faintly inside the house. Any water running or central heat/air running are much louder than the...

United States on Apr 12, 2012



Tjernlund V2D UnderAire Crawlspace Ventilator Fan: Reduce Moisture and Mold, 220 CFM Heavy-Duty Aluminum Ducting with Four-Layer Protection VIVOSUN 6 Inch 25 Foot Black Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation and Cooling System Maintenance
Tjernlund V2D UnderAire Crawlspace Ventilator Fan: Reduce Moisture and Mold, 220 CFM Heavy-Duty Aluminum Ducting with Four-Layer Protection VIVOSUN 6 Inch 25 Foot Black Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation and Cooling System Maintenance
B2B Rating
87
96
96
Sale off $37 OFF $5 OFF
Total Reviews 24 reviews 201 reviews 57 reviews
Date First Available ‏ ‎ January 2, 2008
Air Flow Capacity 220 Cubic Feet Per Minute
Material Building Materials Aluminum
HVAC Ducting HVAC Ducting
Customer Reviews 4.5/5 stars of 743 ratings 4.7/5 stars of 7,403 ratings 4.6/5 stars of 5,829 ratings
Voltage 120 Volts
Manufacturer ‏ ‎ No
Brand Tjernlund AC Infinity
Wattage 40 watts
Is Discontinued By Manufacturer ‏ ‎ No
Item model number ‏ ‎ V2D
Building Materials Building Materials
Best Sellers Rank #103 in HVAC Ducting#3,013 in Building Materials #3,887 in Tools & Home Improvement #7 in HVAC Ducting #6,113 in Tools & Home Improvement #9 in HVAC Ducting
ASIN ‏ ‎ B000N4WOWK
Product Dimensions ‏ ‎ 12.8 x 22 x 4.7 inches; 6.4 Pounds
Country of Origin ‏ ‎ USA
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