If your chosen fitting pack has a WD50 (with door 50cm) length of flue pipe but you would like 100cm please add this to your order and we will increase the length.
Note that the soot door is in the same lower part of the pipe (top of door approx. 20cm from top of your stove collar).
Pipe can be cut down (at the top only) using a 115mm 1mm-thick cutting disk (available in the Warehouse)..
Brilliant purchase and customer services. Would recommend this company.