You can set up any angle from5º up to 90º, just twist parts of the elbow to change the angle. Stainless Steel Adjustable Elbow.
Stainless Steel Adjustable Elbow 90 45 15 Degree Flue Liner Bend Chimney Pipe
Stainless Steel Adjustable Elbow 90 45 Degree Chimney Liner Bend Ducting Pipe
Metal Adjustable Elbow / Any Angle 90 45 15 Degree / Chimney Liner Bend Pipe
Stainless Steel Stove Pipe 80mm / 3.15" - 33cm Chimney Flue Liner Ducting Tube
Stainless Steel Stove Pipe 80mm / 3.15" - 25cm Chimney Flue Liner Ducting Tube