Need heat that just works? The BU-1000 family gives you proven performance with simple installation. All standard models (except the dual-fan 5-series) deliver ~35,000 BTU and ~430 CFM with 3 blower speeds and 5/8″ hose connections. Your main choices are: voltage (12V vs 24V), hose exit (rear vs bottom), and mounting style (feet, bezel, both, none, or plenum kit).
How to pick the right BU-1000
Choose exit style
Rear-exit keeps hoses behind the unit for a tidy front face.
Bottom-exit routes hoses down for under-seat or floor runs.
Choose mounting
Feet for fast, adjustable installs on a 2.75″ × 2.75″ (1/4-20) pattern.
Bezel for a clean, finished opening on a panel.
Feet + Bezel when you want both flexibility and a finished face.
No mounts when you’ll bolt the cabinet directly.
Plenum kit when you want built-in louvers and hose adapters.
Choose voltage
12V for most light and medium equipment.
24V for heavy equipment and fleets using 24-volt systems.
Model cheat-sheet
Rear-exit models
BU-1000-2-12 — 12V, Rear Exit, Bezel
Best for: finished front panels with rear hose routing.BU-1000-2-24 — 24V, Rear Exit, Bezel
Best for: 24V systems that need a clean panel finish.BU-1000-3-12 — 12V, Rear Exit, Feet + Bezel
Best for: flexible mounting plus a finished face.BU-1000-3-24 — 24V, Rear Exit, Feet + Bezel
Best for: 24V installations that require both mounting and a bezel.BU-1000-10-12 — 12V, Rear Exit, Feet + Plenum (2.5″ adapters)
Best for: plug-and-play outlets with an included louvered plenum.BU-1000-10-24 — 24V, Rear Exit, Feet + Plenum (2.5″ adapters)
Best for: same as above in 24V systems.
Bottom-exit models
BU-1000-5-12 — 12V, Bottom Exit, Dual-Fan, Feet (2-speed, ~30k BTU/225 CFM)
Best for: quiet airflow and lower-draw two-speed operation.BU-1000-6-12 — 12V, Bottom Exit, No Mounts
Best for: direct bolt-on, where you supply the bracket.BU-1000-6-24 — 24V, Bottom Exit, No Mounts
Best for: same as above for 24V fleets.BU-1000-7-12 — 12V, Bottom Exit, Feet
Best for: fast, adjustable installs on common bolt patterns.BU-1000-7-24 — 24V, Bottom Exit, Feet
Best for: 24V version of the flexible foot-mount favorite.BU-1000-8-12 — 12V, Bottom Exit, Bezel
Best for: tidy floor routing with a finished front.BU-1000-8-24 — 24V, Bottom Exit, Bezel
Best for: 24V installs that want a bezel finish.BU-1000-9-12 — 12V, Bottom Exit, Feet + Bezel
Best for: maximum mounting flexibility and a finished face.BU-1000-9-24 — 24V, Bottom Exit, Feet + Bezel
Best for: same as above in 24V applications.BU-1000-11-12 — 12V, Bottom Exit, Feet + Plenum (3.0″ adapters)
Best for: integrated louvered outlet with larger 3.0″ adapters.
Quick comparison table
| Model | Voltage | Exit | Mounting | Special | Output / Airflow |
|---|---|---|---|---|---|
| 2-12 / 2-24 | 12V / 24V | Rear | Bezel | Finished front | ~35k BTU / ~430 CFM, 3-speed |
| 3-12 / 3-24 | 12V / 24V | Rear | Feet + Bezel | Flexible + finished | ~35k BTU / ~430 CFM, 3-speed |
| 5-12 | 12V | Bottom | Feet | Dual-fan, 2-speed | ~30k BTU / ~225 CFM |
| 6-12 / 6-24 | 12V / 24V | Bottom | No mounts | Direct bolt-on | ~35k BTU / ~430 CFM, 3-speed |
| 7-12 / 7-24 | 12V / 24V | Bottom | Feet | Adjustable height | ~35k BTU / ~430 CFM, 3-speed |
| 8-12 / 8-24 | 12V / 24V | Bottom | Bezel | Finished front | ~35k BTU / ~430 CFM, 3-speed |
| 9-12 / 9-24 | 12V / 24V | Bottom | Feet + Bezel | Flexible + finished | ~35k BTU / ~430 CFM, 3-speed |
| 10-12 / 10-24 | 12V / 24V | Rear | Feet + Plenum | 2.5″ adapters | ~35k BTU / ~430 CFM, 3-speed |
| 11-12 | 12V | Bottom | Feet + Plenum | 3.0″ adapters | ~35k BTU / ~430 CFM, 3-speed |
When in doubt, start here
Need a finished front? Pick a bezel model.
Need fast bolt-on? Pick feet (or feet + bezel if you also want a clean face).
Tucking hoses downward? Go bottom-exit. For tidy panels, go rear-exit.
Want built-in outlets? Choose plenum variants (-10 with 2.5″, -11 with 3.0″).
On 24 volts? Choose the matching 24V model number.
Ready to spec your heater?
Pick your exit, mounting, and voltage. Then add your BU-1000 to cart and pair it with hose, louvers, and adapters from your build list.