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Turbine Boss

Model # 100-A

Internet # 100661459

Store SKU # 182058

12 in. Automatic Damper for Turbine Vent

This item has been discontinued.
The Home Depot no longer carries this specific product.

$22.50 /each


Model # 100-A

Internet # 100661459

Store SKU # 182058

The turbine boss stops turbine heat loss in winter. Louvers open in warm weather, close in cold weather. It's automatic. Wind turbine attic vents suck warmth from your rooms during winter. The turbine boss fixes this problem. Lowers your heating bills. Just install it and forget it.

  • Driven by temperature (needs no batteries)
  • Lowers your heating bills
  • Saves energy
  • Install in minutes
  • Fits new or old turbine ventilators, 12 and 14 in. Dia
  • It's automatic
  • Louvers: open at 80°F summer, closed at 40°F winter
  • 25-year guarantee; U.S. patent
  • Restricts turbine suction in cold temperature
  • Features:

    automatic damper turbine vent turbine boss

Info & Guides

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Cut-Out Left to Right Width (in.) 
2.2 in 
Net-Free Area (Sq. In.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Color Family 
Color/Finish Family 
Product Weight (lb.) 
1 lb 
Screen Included 
UV Resistant 
Vent Type 
Warranty / Certifications
Manufacturer Warranty 
25-year factory replacement of thermostatic coil as needed. This is the drive mechanism. 


Rated 4.6 out of 5 by 31 reviewers.
Rated 5.0 out of 5.0 by Easy Installation, & Works In The 'Frig... LOL I got 2 Turbine Boss', put them in the frig, they closed & I let them warm up, they opened as advertized. I have 16" turbines so I plugged the gap with insulation. I've checked them in the morning & they're closed, checked them later & they opened all the way. So that saves me from bagging & un-bagging the turbines, good to go. October 24, 2012
Rated 5.0 out of 5.0 by Easy to install I bought 4 of the 12" automatic damper for turbine vents since I was replacing my old turbines. I never liked the fact that the turbines were always open to the elements, so I decided to add the automatic damper to my installation. First, they are well made and worked when tested in the refrigerator. Second, they are very easy to install, especially since I already had the old turbines off. The damper adds another level of water and cold intrusion prevention. July 25, 2015
Rated 3.0 out of 5.0 by Plus and Minus When I test installed this damper in my 14" turbine, I discovered that they are really designed for 12" turbines. They come with "adapters" t0 fix the 14" turbine, however that installation leaves a large gap between the damper and the turbine. I believe they would fix the 12" turbine and work well. They are entirely plastic, so I was a little concerned that with attic temperatures reaching 140+ the damper might warp. Check for reviews where the dampers have been in place for several years. I researched attic ventilation before deciding on the "old school" passive turbines. Seems power and solar have there issues. I have inspected a lot of roofs in my 41 year career and the externally braced turbines seem to have more problems than the internally braced turbine. June 14, 2015
Rated 5.0 out of 5.0 by Amazing idea! This is an amazing idea! Put the little coil in it's pocket CORRECTLY and it opens in heat and closes in cold. Just put it inside the turbine frame, put the turbine on the frame and you're done. No more covering your turbines in the winter and taking them off in summer. Manufacturer VERY responsive. Within minutes of emailing a question I received a phone call with the answer. AMAZING customer support! Unlike many companies today. Don't hesitate to try this product. June 11, 2011
Rated 5.0 out of 5.0 by It DOES ventilate in winter. Respnding to: PJinSoCal.... Please see the 'Energy Guide". Notice that Turbine Boss DOES vent attic moisture during winter. You choose the 'Winter Ventilation Rate' when installing. It's easy. Also don't try to stop the turbine from spinning...rain will come into the attic. This is a great way to save energy. October 3, 2010
Rated 5.0 out of 5.0 by Damper These things really work! Put it in a separate garage, open in warm, closed when cold. Keeps garage about 5-8 degrees warmer in cold weather, silent operation. March 18, 2014
Rated 4.0 out of 5.0 by Worth a try I had a roofer help me install two of these Turbine Boss vents along with two new 12' Whirlybird Turbines. Initially the roofer was sceptical that they would perform as indicated on the box, but after we assembled and inserted them into the turbines, he asked me where I got them. When I told him he said he was going to start recommending them to his other customers. Based on his endorsemnet, I feel good about trying them out on my own roof. I'll need to wait until it gets cooler to confirm the vents fully close but the box says you can test them in your freezer if you doubt their claims. Pros: Fair price Easy assembly Cons: Only available online at Constructed of plastic. I thought they'd be sheetmetal. July 6, 2009
Rated 5.0 out of 5.0 by Easy enough for the DIYer I have a 1930's 2 story home with a steep roof which makes it very difficult as a senior to cover every winter, which I strongly believe in doing. No I don't have even think about it anymore. As suggested with the instructions I tested the unit first in my refrigerator and it worked everytime. May 28, 2014
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