FAMCO

FAMCO makes engineered ventilation products for heating and cooling contractors, including wall vents, roof vents, HVAC dampers and chimney caps. Its make-up air kits, which bring outside air into a home's system while limiting drafts, and its modular wall vent kits with interchangeable components are among its newer lines. Products come in materials such as galvanized steel, stainless steel, copper, aluminum and high-density plastic.

The company sells mainly to HVAC professionals. Customers can order through the online catalog, request bulk quotes, or find a local dealer through its dealer locator. FAMCO is family-owned and has operated since 1989. It is based on East Franklin Road in Nampa, Idaho, and offers delivery, with a typical lead time of five days.