LEADING GLOBAL MANUFACTURER L.B. White Company is a leading global manufacturer of forced air heaters, brooders, tube heaters, handheld gas torches, convection heaters, portable heaters, evaporative cooling systems, tunnel doors, fans, inlets / vents, filtration, plumbing supplies, and more. With over 70 years in the business, we specialize in providing climate solutions and heating and cooling systems for the agricultural, horticultural, industrial, construction, and special event / party tent rental industries.