Description
BDM Dalsin Line 4" 24 Gauge Stainless Steel Storm Collar btu42000 000 BTU Hour input (NG) 1200W WM6 NG DMI G9T F5P NB 000 BTU Hour input (NG) Professional finish Model 660004 Clearance Zero Zero clearance when installed into a masonry chimney and wrapped with a 1 2" ceramic fiber insulation blanket "Dalsin Line" rigid stainless steel liner and fittings are offered in both type 304 and type 316L stainless steel