Keywords: Nelson furnace.jpg Private fire test furnace in Tulsa Oklahoma USA This furnace is used primarily for internal Research and Development but may also be used for third party testing if the test is witnessed by Underwriters Laboratories There is an adjustable opening on this furnace that can be used for 4' x 4' as well as 6' x 6' slabs The furnace can also be tilted 90° to be able to test either wall assemblies or floor assemblies The laboratory is also equipped with a full 30PSI hose stream capability own 2006-11-26 Achim Hering Furnaces Fire testing Firestops Plumbing Pipes |