Featuring a heavy duty design, the HI 400HD series indirect fired heaters from Wacker Neuson Climate Technology are built to deliver reliable operation in extreme cold-weather conditions. The Wacker Neuson cold-weather package enables the heaters to deliver consistent heat, even in temperatures as low as negative 40F (negative 40C). A combustion air supply system option allows warm air to be diverted to the burner further ensuring clean, dependable combustion when operating in extreme cold, according to the manufacturer.

Three easily interchangeable supply air adapters — 20-in. (51 cm) single, 16-in. (40 cm) dual or 12-in. (30 cm) triple — provide contractors with multiple options for directing heat to where it is needed. An optional 20-in. return-air adapter delivers adjustable recirculation of warm inside air to provide higher fuel savings and more uniform internal temperatures.

Eliminating the open flame that can introduce combustion carbons and water into the work area, these units produce clean, moisture-free heat that provides an ideal working environment and keep a variety of construction, residential and restoration projects on schedule. The CSA-approved heaters include a dedicated second blower for combustion efficiency reaching 85 percent, making the new HI 400HD heaters among the most efficient on the market.

These rental- and user-friendly new indirect fired heaters operate on diesel fuel (HI 400HD D) or natural gas/propane (HI 400HD G), giving contractors more fuel options to meet job site needs. Both models come standard with a robust frame design complete with cross-support bracing, lifting bale and forklift pockets for a longer service life. An adjustable handle and large pneumatic tires integrated into the frame facilitate heater positioning at the job site.

With a large fuel tank that extends intervals between refilling, the diesel model features a two-stage burner with an optional setting for increased fuel savings during low-heat demand. The HI 400HD D fuel input options include: stage 1 at 272,000 BTU/hr (79.7 kW); and stage 2 at 411,000 BTU/hr (120.5 kW). Producing 3,750 cfm air movement at 0.6-in. static pressure, the unit efficiently heats up to 583,528 cu. ft. (16,524 cu m) areas or dries up to a 195,000 cu. ft. (5,522 cu m) space.

The Wacker Neuson HI 400HD G features an adjustable ball valve with a safety locking device to switch back and forth between natural gas and LP fuel sources. The heater’s dedicated second blower improves combustion efficiency to 85.6 percent. With its 381,000 BTU/hr (111.7 kW) fuel input and 126F (52.2C) temperature rise, the HI 400HD G quickly heats up to a 548,333 cu. ft. (15,527 cu m) space or dries a 195,000 cu. ft. (5,522 cu m) area. The heaters produce 3,820 CFM air movement at 0.6-in. static pressure. A 100 percent stainless steel burner head and gas pipe assembly extends service life, according to the manufacturer.

For more information, visit www.wackerneuson.com.

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