Designed originally for coal drying, the OT-2 Air Drying Oven has proven useful for drying soil and fire-proofing samples as well. It serves for procedures calling for air drying at room temperature. While the 105°F (41°C) maximum oven temperature is below 140°F (60°C) allowed for some other soil procedures, drying is still rapid and efficient because of the high air flow of 1—4 air changes per minute.
The large 30ft³ chamber measures 35.75x22.5x64in (908x572x1,626mm), WxDxH to accommodate large drying pans. The six shelves provided adjust on 2in (51mm) centers. Entering air passes over the 2,000 Watt heating element to the rear plenum for distributed horizontal flow through the chamber and out the holes in the front door. Two separate 24 hour timers are included for heater and fan control, so the unit may be run with unheated air circulation if desired. The solid state temperature controller has digital chamber display with switch to read or set the setpoint temperature. Required power is 20 amps at 115V. Heat-up time is 30 minutes or less.