An ideal support assembly for freestanding fireplaces and open cathedral ceiling installations. Fits all roof pitches and requires only simple framing. Mounts easily on to top of roof through opening that allows 2 inch clearance. Maximum length of chimney which can be suspended below is 20 feet supported. Maximum total length is 30 feet. The Roof Support (RSP) contains one 18 inch length of pipe roof brackets and necessary hardware. The roof brackets and hardware may be purchased without the pipe section by ordering a Roof Support Kit (RSK). The brackets may be assembled to any standard pipe length at any desired height. Locking bands must be used at each pipe joint when installing either the RSP or RSK. Brand Name: Selkirk Diameter: 8 in. Material: Stainless Steel Product Type: Stove Pipe Support Vent Type: Type HT Packaging Type: Boxed UL Listed: Yes Maximum Continuous Temperature: 1800 Btu/h Number: 8T-RSP Number in Package: 1 pk Maximum Chimney Length: 20 ft. Chimney Vent Type: Type A Maximum Temperature: 2100 �F