Dual Chamber Furnace
- Grieve - BT-12128, BT-12128-HT, BT-121212, BT-121212-HT and more
- Digital temperature controller
- Motor control push buttons and on-off heat switch
- LED pilot lights
Space saving, over and under, heat treating and tempering furnace combination.
Outside Dimensions
- BT-122012 depth includes 14″ motor mount overhang at rear
- Assembled dimensions include 10″ control panel overhang at right and, BT-122012 motor mount overhang at rear
Operating Characteristics
- Accuracy as percent of controller span
- Uniformity at 100°F below maximum temperature
- Rise Time in minutes to 100°F below maximum temperature
- Tests run with empty oven and minimum exhaust
- Performance will vary with load and application
Certifications
- UL Listed Control Panel
- Meets the Requirements of the Following Standards:
- NFPA 86 (Standard for Ovens and Furnaces)
- NFPA 70 (National Electric Code)
- FM (Factory Mutual)
- OSHA
Caution:
- When processing combustible material fire protection should be considered
- Not for use with flammable solvents or vapors. Other models available for these applications
Safety Equipment
- Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
- Separate heating element control contactors to turn off heat on malfunction of main control contactors
- Recirculating blower air flow safety switch to turn off heat on loss of recirculated air flow
- Electrical interlock shuts off heat if power to recirculating blower is interrupted
- Door interlock turns off power to heating elements when door is opened to protect operator from line voltage at heating elements
Controls
- Digital temperature controller
- Motor control push buttons and on-off heat switch
- LED pilot lights
- 5 kA short circuit current rating (SCCR)
Construction
- 208 volt (at 80% of 230 volt heat input),230 volt or 460 volt, 3-phase, 60 HZ – other input power available
- All welded construction
- High temperature Kanthal A-1 coiled wire heating elements supported in rugged ceramic plates
- Heating elements located on sidewalls and ceiling of work space for excellent temperature uniformity
- High pressure stainless steel recirculating blower
- Insulated with light weight, energy saving refractory ceramic fiber
- Heavy gauge aluminized steel exterior with Trilite Green enamel finish
- Brushed stainless steel control panel face
- Side hinged door
- Removable ceramic hearth tray
- Designed to support heat treating Bench Furnace
- Fully assembled and factory tested
READ ON OUR BLOG:
Standard & custom-made Grieve ovens in action
*** Not for use with flammable solvents, vapors, or gases ***
| MODEL | WORKSPACE | OUTSIDE DIMENSIONS*(WXDXH) | MAX TEMP | HEAT INPUT | INSULATION THICKNESS | OPERATING CHARACTERISTICS† | DOOR TYPE | HEIGHT W/ DOOR OPEN | HEARTH RATING | APPROX SHIPPING WEIGHT | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIMENSIONS(WXDXH) | VOLUMECU FT | ELECTRICKW | GASBTU/HR | CONTROL ACCURACY | TEMPERATURE UNIFORMITY | RISE TIME (ELECTRIC) | RISE TIME (GAS) | ||||||||
| BT-12128 | 12" x 12" x 8" | 0.7 | 38" x 40" x 62" | 2,000°F | 6 | Not Available | 5" | ± 0.3% | ±15°F | 55 | Not Available | 83" | 60 | 1,300 lbs | |
| BT-12128-HT | 12" x 12" x 8" | 0.7 | 40" x 40" x 64" | 2,200°F | 6 | Not Available | 6" | ± 0.3% | ±20°F | 80 | Not Available | 85" | 60 | 1,340 lbs | |
| BT-121212 | 12" x 12" x 12" | 1 | 38" x 40" x 68" | 2,000°F | 7.5 | Not Available | 5" | ± 0.3% | ±12°F | 50 | Not Available | 97" | 60 | 1,350 lbs | |
| BT-121212-HT | 12" x 12" x 12" | 1 | 40" x 40" x 70" | 2,200°F | 7.5 | Not Available | 6" | ± 0.3% | ±17°F | 65 | Not Available | 99" | 60 | 1,400 lbs | |
| BT-12188 | 12" x 18" x 8" | 1 | 38" x 40" x 62" | 2,000°F | 7.5 | Not Available | 5" | ± 0.3% | ±10°F | 65 | Not Available | 83" | 60 | 1,425 lbs | |
| BT-12188-HT | 12" x 18" x 8" | 1 | 40" x 40" x 64" | 2,200°F | 7.5 | Not Available | 6" | ± 0.3% | ±15°F | 75 | Not Available | 85" | 60 | 1,525 lbs | |
| >BT-121812-HT | 12" x 18" x 12" | 1.5 | 40" x 40" x 70" | 2,200°F | 12 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 99" | 60 | 1,550 lbs | |
| BT-121812 | 12" x 18" x 12" | 1.5 | 38" x 40" x 68" | 2,000°F | 12 | Not Available | 5" | ± 0.3% | ±10°F | 45 | Not Available | 97" | 60 | 1,450 lbs | |
| BT-12248 | 12" x 24" x 8" | 1.3 | 38" x 40" x 62" | 2,000°F | 12 | Not Available | 5" | ± 0.3% | ±10°F | 50 | Not Available | 83" | 60 | 1,475 lbs | |
| BT-12248-HT | 12" x 24" x 8" | 1.3 | 40" x 40" x 64" | 2,200°F | 12 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 85" | 60 | 1,530 lbs | |
| BT-122412 | 12" x 24" x 12" | 2 | 38" x 40" x 68" | 2,000°F | 15 | Not Available | 5" | ± 0.3% | ±10°F | 45 | Not Available | 97" | 60 | 1,550 lbs | |
| BT-122412-HT | 12" x 24" x 12" | 2 | 40" x 40" x 70" | 2,200°F | 15 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 99" | 60 | 1,610 lbs | |
| BAT-12128 | 12" x 12" x 8" | 0.7 | 38" x 40" x 62" | 2,000°F | 6 | Not Available | 5" | ± 0.3% | ±15°F | 55 | Not Available | 83" | 60 | 1,370 lbs | |
| BAT-12128-HT | 12" x 12" x 8" | 0.7 | 40" x 40" x 64" | 2,200°F | 6 | Not Available | 6" | ± 0.3% | ±20°F | 80 | Not Available | 85" | 60 | 1,410 lbs | |
| BAT-121212 | 12" x 12" x 12" | 1 | 38" x 40" x 68" | 2,000°F | 7.5 | Not Available | 5" | ± 0.3% | ±12°F | 50 | Not Available | 97" | 60 | 1,420 lbs | |
| BAT-121212-HT | 12" x 12" x 12" | 1 | 40" x 40" x 70" | 2,200°F | 7.5 | Not Available | 6" | ± 0.3% | ±17°F | 65 | Not Available | 99" | 60 | 1,470 lbs | |
| BAT-12188 | 12" x 18" x 8" | 1 | 38" x 40" x 62" | 2,000°F | 7.5 | Not Available | 5" | ± 0.3% | ±10°F | 65 | Not Available | 83" | 60 | 1,445 lbs | |
| BAT-12188-HT | 12" x 18" x 8" | 1 | 40" x 40" x 64" | 2,200°F | 7.5 | Not Available | 6" | ± 0.3% | ±15°F | 75 | Not Available | 85" | 60 | 1,545 lbs | |
| BAT-121812 | 12" x 18" x 12" | 1.5 | 38" x 40" x 68" | 2,000°F | 12 | Not Available | 5" | ± 0.3% | ±10°F | 45 | Not Available | 97" | 60 | 1,470 lbs | |
| BAT-121812-HT | 12" x 18" x 12" | 1.5 | 40" x 40" x 70" | 2,200°F | 12 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 99" | 60 | 1,575 lbs | |
| BAT-12248 | 12" x 24" x 8" | 1.3 | 38" x 40" x 62" | 2,000°F | 12 | Not Available | 5" | ± 0.3% | ±10°F | 50 | Not Available | 83" | 60 | 1,580 lbs | |
| BAT-12248-HT | 12" x 24" x 8" | 1.3 | 40" x 40" x 64" | 2,200°F | 12 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 85" | 60 | 1,625 lbs | |
| BAT-122412 | 12" x 24" x 12" | 2 | 38" x 40" x 68" | 2,000°F | 15 | Not Available | 5" | ± 0.3% | ±10°F | 45 | Not Available | 97" | 60 | 1,675 lbs | |
| BAT-122412-HT | 12" x 24" x 12" | 2 | 40" x 40" x 70" | 2,200°F | 15 | Not Available | 6" | ± 0.3% | ±15°F | 60 | Not Available | 99" | 60 | 1,725 lbs | |
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