DuraVent DuraTech 5" Diameter Galvalume Steel 48" Pipe Length All Fuel Chimney Pipe h23 the semi-flush mount surround is

the semi-flush mount surround is required and must be purchased separately

Designed for use with a Intermittent Pilot Ignition system

Model CHD-18 Series Charred Vent Type Vented Fuel Type Natural Gas or Propane Size 18" Compatible Burner G4

Be assured that this fireplace is safe

DuraVent DuraTech 5" Diameter Galvalume Steel 48" Pipe Length All Fuel Chimney Pipe h23 the semi-flush mount surround isAll fuel, double wall chimney system. UL 103 HT and ULC S604 With a Thermal Tech blanket insulation encased between dual walls, DuraTech offers optimum safety and performance. It keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys for an extra margin of safety. No locking bands or mechanical fasteners are required. DuraTechs sleek 1