A 250°F (121°C) electrically heated oven, No. 861 is used to dry small parts in a tray at the user’s facility. A 300-cfm, 0.33-hp recirculating blower provides vertical airflow upward through tray to the workload while 3 KW are installed in Incoloy-sheathed tubular heating elements. The oven holds one stainless steel tray 6 x 18 x 6" with a perforated bottom. The tray sits on drip trap/air diffuser, which is removable for cleaning. Features include 2" insulated walls and Type 304, 2B finish stainless steel interior. Controls include a digital-indicating temperature controller, manual-reset excess-temperature controller with separate contactors and an airflow safety switch.