939 GrieveNo. 939 is a 2000°F gas-heated box furnace from Grieve, currently used for preheating metals prior to forging.  Workspace dimensions measure 72”Wx36”Dx48”H.  700,000 BTU, installed in two modulating natural gas burners with a floor-mounted combustion air blower, heat the unit.

This Grieve furnace features 7” insulated walls made with 5” of 2300°F ceramic fiber and 2” of 1700°F ceramic fiber.  The 7” floor comprises 4-1/2” of 2300°F firebrick and 2-1/2” of 1900°F block insulation.  A firebrick plate hearth is supported by firebrick piers.  The unit has a manually-operated vertical lift door.

No. 939 also includes a digital indicating temperature controller, manual reset excess temperature controller with separate contactors and a fused disconnect switch.

For more information, please contact:

500 Hart Road
Round Lake, IL  60073-2898
Phone:  (847) 546-8225
Fax:  (847) 546-9210
Web:  www.grievecorp.com
Email:  sales@grievecorp.com
Attention:  Frank Calabrese, VP


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