Contact Us | Emergency Services Call 918-258-5300 Home About Us New Equipment Services & Tech CFD Flameless Heaters Sight Doors Heater Sight Doors This unique tight sealing observation door was originated by GST and developed based on years of field testing and working with end-users to provide safe viewing of the burners and radiant coils while also provide means to perform IR inspections. GST has installed hundreds of these doors starting in 2005. Features 5″ X 9″ and 8″ X 16″ cast heater sight doors (custom sizes available) Tight seal heater sight ports for improved heater efficiency and reduced NOx emissions High-temperature glass permits viewing the burners without air leakage Lightweight: 45 lbs. maximum aluminum door Double-hinged design allowing door body and glass to be opened for IR scanning and cleaning of inside glass surface Insulated stainless steel shutter to protect the glass from direct radiant heat and limit soot build-up Fully assembled Video Player 00:00 00:00 Sight Port: Closed Prot. Glass: Closed Shutter: Closed Sight Port: Open Prot. Glass: Closed Shutter: Closed Sight Port: Open Prot. Glass: Closed Shutter: Open Sight Port: Open Prot. Glass: Open Shutter: Open We invite you to inquire about Great Southern Technologies for your upcoming Observation Door needs. 24/7 Emergency Response 918-258-5300 InServ Contact Us 1013 West Ithica Street Broken Arrow, OK 74012 Phone: 918-258-5300 Fax: 918-258-5353 info@GreatSouthernGroup.com © 2021 Great Southern Technologies. All Rights Reserved.