Use the single wall 45 degree elbow when you need to offset the stove pipe to avoid obsticles like rafters, roof peaks, and other obstructions. Note it is best to install elbows as high above the appliance as possible to avoid draft issues.
AllFuel HST 45 Degree Elbow for 6 Diameter Black Single Wall
AllFuel HST 6-Inch Black Pipe Components - AFHST-SB-6
Selkirk Metalbestos Class A Insulated Chimney Pipe - Rockford Chimney
Consturction Double Wall Insulated Stove Pipe Sheet Metal
ALLFUEL HST 8 in. x 3 in. Single to Double Wall Chimney Pipe
Consturction Double Wall Insulated Stove Pipe Sheet Metal
ComfortBilt Roof Support for 6 Inch Double Wall Chimney Pipe
ALLFUEL HST AllFuel 6 in. x 6 in. Single Wall 45-Degree Elbow
Obadiah's: Solid Fuel Chimney Pipe
AllFuel HST Wall Thimble for 6 Diameter 304 Stainless Steel All
ALLFUEL HST 6 in. x 6 in. Base Wall Support Kit for Double Wall
AllFuelHST 45 Degree Elbow for 6 Single Wall Stove Pipe - ComfortBilt
ALLFUEL HST AllFuel 6 in. x 8 in. Single Wall Tee Stove Chimney
ComfortBilt Double Wall Stainless Steel Chimney 6-Inch x 9-Inch
Double Wall Stainless Steel Chimney Pipe 6-Inch x 9-Inch – Dominusheat