Certifications and Codes ..................................................................................................................................7
Non-combustible material .........................................................................................................................9
Framing and Drywall ..................................................................................................................................9
Heat Release ..............................................................................................................................................9
Heat Release: Reveal or Gap ..............................................................................................................10
Air Intake ..................................................................................................................................................15
Fireplace Legs ...........................................................................................................................................15
Access Panel .............................................................................................................................................16
Double Glass Requirements ..........................................................................................................................17
Power Requirements ...............................................................................................................................17
Air Intake Requirements ..........................................................................................................................17
Air Intake for a Platform ..........................................................................................................................18
Framing Diagrams ..........................................................................................................................................19
Tunnel (TN) Framing Diagram ..................................................................................................................22
Clearance & Finish Diagrams .........................................................................................................................25
Inside Corner Clearances ....................................................................................................................28
Finish Diagrams ........................................................................................................................................32
Brick Veneer Finish .............................................................................................................................34
Wood Hearth Extension .....................................................................................................................37
Mantel Diagrams ......................................................................................................................................38
Ledge (Shelf) Detail ..................................................................................................................................40
Chase Area Minimums .............................................................................................................................41
4
Table of Contents
Ortal Installation Manual: Built-In Models, September 2018