Crawl Space Vent (Temp-Vent) - Two Piece Unit

Temp Vent Installation Manual

TV Automatic Foundation Vents

Crawl Space Vent (Temp-Vent) - Two Piece Unit

Help protect your foundation with Crawl Space Temp-Vent. The foundation is critical to the integrity of the home.That's why foundation ventilation is critical. Unventilated foundations are subject to built-up moisture that can eventually lead to costly damage.

Crawl Space Vent Temp Vent foundation vent systems help protect this critical area of the home. What's more, ventilation can help control conditions that lead to mold, mildew, fungi, damp rot, and unhealthy air.

Why Should You Use?

If there's one thing termites are attracted to, it's warm, moist, dead-air environments such as those found under houses in crawl spaces or unfinished basements. Temp-Vent products have been especially designed for the pest control industry.

Temp-Vent foundation vents help to provide ventilation that can reduce moisture in these areas, which helps control termites.

A crawl space dehumidifier with no drain or power needed!

Directions for Use

Whenever possible, vents should be placed on all sides of the foundation. This will create an intake/exhaust system that delivers a steady flow of air. One vent should be installed for each 8 to 10 feet of foundation wall.

Most building codes require 1 square foot of open ventilation area for every 150 square feet of crawl space. Temp Vent Automatic Foundation Vents have 50 inches of net free area per vent. Therefore, you should install one vent for every 50 square feet of crawl space.

For crawl spaces with polyethylene installed, on 80-90% of the ground, the ventilation requirement changes to 1 square foot of ventilation for every 500 square feet of crawl space with a minimum of 4 vents installed to provide cross ventilation. For crawl spaces with polyethylene, install at least one vent for every 500 square feet of crawl space.

The non-powered, Automatic Foundation Vent will open and close automatically using a heat/cold sensitive coil. The louvers open completely at approximately 72 F and completely close at approximately 38 F. Unlike manual vents that can waste energy when no one remembers to open or close them, these vents self-adjust all year long.

To Specify

1. Multiply the square feet of the crawl space by the height in feet. This gives the number of cubic feet in the crawl space.
2. Multiply the cubic feet in the crawl space by the number of air changes per hour desired (4-6 is the recommendation). This gives the total number of cubic feet of air that has to be moved per hour to produce the desired number of air changes.
3. Divide this number by either 7,200 or 11,160 depending on which model is being used to obtain the number of power vents needed.
4. Install vents to provide air intake on one side of the foundation with the power vents on the other side to create a system of intake and exhaust.

Example: 1500 square foot crawl space x 3 feet high = 4500

4500 cubic feet x 6 = 27,000 / 7,200 = 3.74

Install 4 power vents with intake vents on the opposite side.