The HPG3845 extreme weather grille offers designers a ventilation solution for their near-absolute life safety requirements, the company said. Tested to FEMA 361, this severe-duty grille can be mounted internally, externally, or in conjunction with other louvers.

Providing aerodynamically superior performance, the FHRV Fiberglass Hooded Roof Ventilators are ideal for corrosive environments or contaminated airstream applications, claims the manufacturer. The roof ventilator features an FRP airfoil axial impeller, which has a factory-set blade pitch for precise performance matching.

A brochure explaining a cost-effective way to mechanically circulate fresh outdoor air within the crawl space to eliminate excess moisture is available to builders, remodelers, and homeowners. The brochure includes installation, number-of-ventilators-required calculator, performance, and dimensions.

Over the last 10 years, there has been a growing trend toward using insulated products like fiberglass duct board and flexible duct, especially in the new construction market. Today this trend is continuing because of the emphasis on the whole-home approach to energy conservation and home performance contracting.

Teamwork and ingenuity helped contractors at Dynamic Systems Inc. turn a major shipping and handling problem into an innovative and award-winning duct rack system. Two employees located in the Phoenix office worked together to create a solution for shipping ductwork that saved over 1,000 man-hours.

When Virginia contractors Southern Air Inc. and Kirby-Vass Insulation Inc. joined the project team for the construction of the expansive Greenbrier Casino Club, an addition to the historic, luxurious Greenbrier Resort in White Sulphur Springs, W.Va., they knew they would be put to the test.

Both the 500- and 560-mm fans are electronically commutated (EC) axial fans. They have finned blades and an advanced pitch design that deliver maximum efficiency for specialized applications such as data center cooling. Applications for the fans include use in data centers, heat pumps, condensers, and more.

A line of PVC and CPVC duct dampers offered in butterfly, gravity, and blast gate types for fume removal applications is available. The backdraft dampers come in three flow control types: butterfly for balancing airflow, a gravity backflow preventer which closes when the air pressure stops, and a blast gate for on-off.

Swingout construction on the 69S power roof ventilator provides easy, safe access to internal fan components for inspection, cleaning, maintenance, or repair without removing the entire fan assembly or having personnel working directly over the roof opening.

Energy Star-rated, the WhisperRecessed™ ventilation fan is a combination of an 80-cfm fan and light that is recessed into the ceiling, offering quiet, energy efficient, and powerful ventilation. The compact fluorescent lamp provides diffused, uniform illumination. The specification-grade, fan-light includes the Dual Duct Adapter.