Description Industrial-grade heating power for the toughest environments. The MASTER Airbus BV471 and BV691 are top-tier indirect diesel heaters, engineered for large-scale, high-demand applications. Perfect for construction, aviation, military, and event industries, these models offer maximum efficiency, clean heat, and advanced air distribution capabilities. BV471S4: 136kW output, ideal for medium to large applications BV691TR4: Massive 225kW heating power ideal for large applications including vertical ducting up multiple stories with it centrifugal high pressure fan 100% clean, dry air safe for enclosed and occupied environments Rugged, weather-resistant chassis designed for intensive industrial use Full range of safety features including electronic flame control, overheat shutdown, and thermostat connectivity Suitable for: Agriculture Automotive Buildings and commercial spaces Construction Emergency services Events, festivals and temporary structures General industry and production Military and aerospace Rental companies
