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Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan image
 
(based on 21 ratings)
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Brand: Tjernlund
Located in: Air Quaility, Bath & Exhaust Fans, Crawl Space Ventilation Fans / Accessories
Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan. Two fans and large faceplate sized for ventilation openings through block foundations. Includes thermostat, dehumidistat and pre-wired 6’ power cord. Fan powered crawl space ventilation quickly reduces moisture helping to protect both home and occupants. FEATURES and BENFITS: * Ventilates excess moisture, the cause of mold, mildew and wood rot. Increases air circulation to fight condensation. * Constant operation helps vent radon, treated wood offgassing and odors that might otherwise migrate into living areas. * Galvanized face plate may be trimmed if necessary * Includes adjustable dehumidistat with automatic low temp shut off & restart switch (40 F off, 50 F to turn back on) to avoid freeze up * Includes mounting hardware and installation / owners manual SPECIFICATIONS: Performance: 220 CFM Dehumidistat: Off/On or 20% - 80% RH Thermostat: Opens at 40 degrees F Dimensions: 18” x 9” x 2” .62 Amps Maximum How to determine the number of UnderAire™ Ventilators needed: 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. Example: 20' wide x 40' long x 3' high crawl space = 2,400 cubic ft. 2400 cubic ft. ÷ 15 minutes = 160 CFM of ventilation. Choose one V2D ventilator.
More information for the Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan
Review Snapshot®
Avg. Customer Rating:
 
4.3 stars
(based on 21 reviews)
100% of respondents would recommend this to a friend.

Customers most agreed on the following attributes:

Pros:
Easy to install(20), Powerful(15), Quiet(13), Sleek design(14)
Cons:
Noisy(5)
Best Uses:
Basements(8), Crawl space(3)
Describe Yourself:
Avid do-it-yourselfer(5), Homeowner(18), Professional(3)
 
UnderAire 220CFM Ventilation Fan
By WoodsmithVerified Purchaser from Hot Springs Village, Ar on 2/16/2010
Pros:
Easy To Install, Sleek Design
Cons:
Noisy
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

I have used two of these fans to ventilate a large crawlspace. They appear to be doing the job. My only criticism is the noise level. I can hear the fans through the floor of our home.

 
good product[...]
By ChangVerified Purchaser from Oregon on 12/25/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Cons:
Energy Inefficient, Quiet
Best Uses:
Basements
Describe Yourself:
Handyman
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Great product, working as advertised[...]

 
Container Ventilation
By Dave OlsonVerified Purchaser from East Central Illinois on 12/9/2009
Pros:
Easy To Install, Powerful
Describe Yourself:
Handyman, Homeowner, Professional
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

We needed to move air in a storage container that I store an antique truck.

We had to mount it in the upper part of the container or the tires of the truck would hit the fan when we drove the truck in or out.

I also wanted the fan in the front of the container because the truck is so big we cannot get past it and wanted to be able to access the fan without moving the truck.

We cut holes in the side of the container and installed a grill over it. We installed a like grill on the other end so the air will travel the length of the space.

Container is 48 feet long, 9 feet tall and 8-1/2 feet wide.

Kind of early to tell if this is going to get the job done since colder weather has set it, but I sure hope this solves the problem of the truck sweating!

Thanks for your product.

Dave Olson

Images shared by: Dave Olson

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Tags: Picture of Product, Using Product

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Tags: Using Product

 
Well made product
By andyVerified Purchaser from crossville, tn on 10/17/2009
Pros:
Easy To Install, Powerful, Sleek Design
Cons:
Inside the house, Noisy
Best Uses:
Crawl Space
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Very easy to install, very quite on the outside of the house, but noisy on the inside but I still like the product very much.

 
A product that does what it says it will
By CO HomeownerVerified Purchaser from Westminster, CO on 10/12/2009
Pros:
Easy To Install
Cons:
Noisy
Best Uses:
Crawlspace
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

I am using this product to vent a ~1800 cubic foot crawlspace. I had a terrible smell down there and within two days the fan eliminated the smell. It might have gone faster if it were not a sealed space with just the one vent where the fan is. The fan is a bit noisy because it is attached to the frame, it's not too loud but you can hear it on the side of the house the fan is attached to even on the second floor. The humidistat works great and I have had to set it at ~20% to keep it running constantly. We recently had 17 degree F night temps but the temp control did not turn off the fan, most likely due to the crawl space being warmer as none of the pipes froze. This product does what it says it will do. As for durability I can not comment on that as I have only had it 2 months. I would recomend it to anyone wanting to freshen the dead air space of a sealed crawl space.

 
crawspace fan
By thunderbVerified Purchaser from NJ on 9/22/2009
Pros:
Easy To Install, Quiet
Best Uses:
Basements
Describe Yourself:
Professional
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Unit came in three days Packing was great.

 
nice product
By lake loverVerified Purchaser from Buffalo, NY on 9/22/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Best Uses:
Basements
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

crawlspace ventilation, very well balanced, quiet, so far has been set it and forget it

[1 of 1 customers found this review helpful]

 
Quality product
By Blade RunnerVerified Reviewer from Chesapeake, VA on 9/16/2009
Pros:
Powerful, Quiet
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Put two of these in a very humid crawl space. Humidity had to be 100%. Some of the joists were saturated and mold was present. Used 6 mil poly for the vapor barrier and added two of these at opposite ends. After 3 weeks all the wooden members were dried and humidity was much lower. The mold was dried and flaking off. The only caveat is the humidity control doesn't seem very sensitive. ..perhaps it take a lot of time to adjust.

[1 of 1 customers found this review helpful]

 
Just what I needed for a damp crawl
By Bobert the RobertVerified Purchaser from Waukegan, IL on 9/14/2009
Pros:
Easy To Install, Quiet
Cons:
Little pricey
Best Uses:
Basements
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Fans are quiet and automatic

[1 of 1 customers found this review helpful]

 
Very effective,
By JoeVerified Purchaser from Portage, In on 8/27/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Best Uses:
Crawl Space
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

I had a lot of dampness in my crawl space, after installing this unit, it was only days before it was dry!!!!

[1 of 1 customers found this review helpful]

 
After getting first 2, I ordered 2 more
By B3Verified Purchaser from Mobile, Alabama on 8/4/2009
Pros:
Easy To Install, Quiet, Sleek Design
Cons:
Not Very Powerful
Best Uses:
Basements
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

The product performs well and was very easy to install. As anticipated, the original 2 units were not large enough for the volume of air I need to more. I ordered 2 more. So far very good. Time will tell if they do the job I need.

[1 of 1 customers found this review helpful]

 
Unit has been installed and working fine
By The DuckVerified Purchaser from Morristown, TN on 7/30/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Cons:
Rusting not determined
Best Uses:
Crawl space under house
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

[...]

 
Great Product, Easy install
By DeeVerified Purchaser from Franklin, Tn on 7/14/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Best Uses:
Basements
Describe Yourself:
Homeowner, Professional
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

[...] great item, easy install. I will probably put 1 on all basement vents.

 
Good product just as presented
By MikeVerified Purchaser from Ripley WV on 5/14/2009
Pros:
Easy To Install, Powerful, Sleek Design
Best Uses:
Basements
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

We installed to dry out an area of our basement. Works very well.

[1 of 1 customers found this review helpful]

 
Fixed the Radon problem.
By Pete the builderVerified Purchaser from Aurora, Il on 4/3/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Best Uses:
Crawl Space
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

My Radon levels very 1 point high, I installed the fan and retested, now I am below 4.0. This is the simple cure for person health.

 
Easy to install, great product
By Daddy fixerVerified Purchaser from Belmont, CA on 3/19/2009
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Best Uses:
Basements
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Great product, easy to install. Not sure what setting the dial should be at so I just turn it on and off as I need to.

 
Does the job.
By Rocky Mountain PeteVerified Purchaser from Pine, Colorado on 11/24/2008
Pros:
Easy To Install, Powerful, Sleek Design
Cons:
Noisy
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

[...]

 
2 weeks and still a going strong
By RandyVerified Purchaser from Springfield, MO on 11/14/2008
Pros:
Easy To Install
Cons:
Noisy
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Ventilating my crawlspace.

 
Fans appear to be working just fine.
By AKMAMA1Verified Purchaser from Huntington, WV on 10/29/2008
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Only been installed about a week - difficult to give more detailed comments.[...]

 
Execellent product
By Bill, the homeownerVerified Purchaser from Seattle, Wa. on 10/17/2008
Pros:
Comes with mounting screw, Easy To Install, Powerful
Cons:
Energy Inefficient, Some noise
Best Uses:
Crawl spaces
Describe Yourself:
Handyman, Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Fan works well, exactly as described.

 
I plan on buying another, very nice
By 2ragtopsVerified Purchaser from Beautiful downtown Scotsdale Missouri on 10/2/2008
Pros:
Easy To Install, Powerful, Quiet, Sleek Design
Describe Yourself:
Homeowner
Bottom Line:
Yes, I would recommend this to a friend

Comments about Tjernlund Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan:

Well built, quiet, and works well. Nice piece of merchandise.

Customer Reviews about the Tjernlund Deluxe UnderAire™ 220 CFM Crawlspace Ventilation Fan at iaqsource.com
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