The working space is made of mild steel plate, heating is accomplished by Nichrome heaters provided immediately beneath the working surface. One no. 3 heat control switch will be provided to work the heater either at low or high supplied complete with plug and cord for operation on 230 Colts 50 c/s single phase Mains.
| Model | Size(dia) | Rating (KW) |
| OHPR-1 | 10”x12” | 1.2 |
| OHPR-2 | 10”x16” | 1.5 |
| OHPR-3 | 12”x18” | 2.0 |
| OHPR-4 | 12” | 3.0 |