Overview
Choose BU-1000-9-12 when you want a compact heater with clean bottom-exit plumbing and a finished front. The feet help you hit common bolt patterns and height; the bezel gives the opening a professional look. Note: the feet and bezel do not share the same mounting holes, so plan fasteners accordingly.
Key Features
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Output & 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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Mounting: Feet mount in 4 positions on a 2.75″ × 2.75″ pattern; bezel mounts in 4 positions. (Feet and bezel cannot share a common hole/bolt.)
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Finish: Durable black powder-coat steel cabinet.
Dimensions & Mounting
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Overall envelope (approx.): 16.02″ L × 6.45–7.35″ H × ~3.75″ face depth; face width ~17.57″; face height 8.00″.
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Face hardware: Ø0.25″ through-holes (x4); outer hole spacing ~13.58″; bezel opening ~7.30″ H.
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Cabinet threads: 1/4-20 (x4); square 2.75″ × 2.75″ pattern.
Wiring
Blower module leads are labeled MIN+ / MOTOR+ / MAX+ for low, medium, and high operation.
Service Parts (major items)
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BT3-0600 — 12V blower assembly
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BT6-1450 — heater core, bottom exit
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BT100527 — heater mounting foot (x2)
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BT100529 — heater mounting bezel
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BT100526 / BT100524 / BT100525 — blower plate, front housing, side panels
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BF-286 foam strips; mixed hardware (spinlocks, #10-24, M4)
Specifications
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Model: BU-1000-9-12
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Type: 12V cab heater, bottom exit, with mounting feet + bezel
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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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Finish: Black powder-coat
Applications
Great for heavy truck, ag, construction, forestry, and specialty equipment that need a compact 12V heater with tidy bottom-exit plumbing and a finished bezel opening.
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