Overview
Choose BU-1000-11-12 when you want a compact heater with clean bottom-exit plumbing and a finished four-louver outlet. Adjustable feet hit common bolt patterns, while the 12V twin blower moves air quietly for fast, even cab heat.
Key Features
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Heat / Airflow: 35,000 BTU/hr, 430 CFM, 3 speeds
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Electrical: 12V system (13.6 VDC nominal), ~16 A draw
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Plumbing: Bottom exit core; 5/8″ heater hose connections (x2)
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Outlet system: 4-louver plenum with (4) 3.0″ hose adapters
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Mounting: 1/4-20 threaded holes (x4); feet mount in 4 positions on a 2.75″ × 2.75″ pattern; cabinet height adjusts 6.45″–7.35″
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Finish: Black powder-coat steel cabinet
Dimensions & Mounting
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Envelope (approx.): 16.02″ L × 6.45–7.35″ H × 5.93″ D
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Face width: ~17.12″ with Ø0.31″ (x4) face holes
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Feet pattern: 2.75″ × 2.75″; 1/4-20 threaded mount holes (x4)
Wiring
Blower leads labeled MIN+ / MOTOR+ / MAX+ for low, medium, and high operation.
Service Parts (major items)
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12V blower assembly
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Heater core (bottom-exit)
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Plenum (plastic)
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3.0″ hose adapters (x4)
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Heater mounting feet (x2)
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Hook-and-loop strips, foam seals, and hardware
Specifications
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Model: BU-1000-11-12
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Type: 12V cab heater, bottom exit, with mounting feet + plenum
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Heat Output: 35,000 BTU/hr
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Airflow: 430 CFM, 3 speeds
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Electrical: 13.6 VDC, ~16 A
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Hose Connections: 5/8″ (x2)
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Outlet Adapters: 3.0″ (x4)
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Finish: Black powder-coat
Applications
Heavy truck, agriculture, construction, forestry, and specialty equipment needing a compact 12V heater with bottom-exit plumbing and a finished, multi-port plenum.
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