Midland Hardware
133083 Air Vent RABL Automatic Foundation Vent Black Air Vent Inc. Air Vent RABL Automatic Foundation Vent Black Black Automatic Foundation Vent Features A Bi-Metal Coil To Open & Close Automatically At A Tempe…
Assorted colors. Colors may vary.

Automatic Foundation Vent Black


Brand: Air Vent

SKU: 133083

Model: RABL

Product Condition: New

UPC: 090617000043

Unit of Measure: 1 Each

Amount Available: 295

You Pay 12.86
Retail Price: 15.89
Your Savings: 3.03 ( 19 %)

In Stock
Black, Automatic Foundation Vent, Features A Bi-Metal Coil To Open & Close Automatically, At A Temperature Of 70 Degrees The Vent Opens To Provide Fresh Intake Air & At 40 Degrees The Vent Closes To Conserve Energy & Protect The Pipes.
5 Stars
frugal gardener
I purchased two of these as an alternative to expensive automatic gas-filled cylinder type vent openers and installed them in the end walls of a small poly tunnel greenhouse. After some experimentation, I can say they work great, provided they are mounted in an upright position so the louvres are allowed to move freely. I tried them at an angle at first, simply because I wanted to avoid re-framing my endwalls... oh well. Happily for me, they open and close gradually, beginning at around 40 degrees F and are fully open at around 70F, a detail not mentioned in the manufacturer's information. Someone unfamiliar with the way a bi-metal coil functions might assume otherwise. So, overall, for this unconventional application, they work quite well. I mounted one low on the SE corner wall for intake and one high on the opposite endwall for outtake, based on average prevailing winds in my location(NE slope). Lightweight enough to be adequately supported by two-by-two framing, yet well-made and sturdy. Extremely easy to install! Thanks Midland, for the low price and exceptionally fast shipping. I will likely order another pair to increase cross-ventilation in this ten-by-ten foot space.
Did you find this review helpful?  1 of 1 Found Helpful
Reviewed by:  from NW Arkansas. on 11/16/2014
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