Gas - flue temperature not exceeding 250 degrees C. Atmospheric gas fired appliances only - Zero or Negative pressures in the flue. Low external temperature reduces clearances required to combustibles.
SFL IL 0421304 flue length 4" 152mm 6"
4" IL Telescopic Adjustable Length Pipe, 50-457mm (24-100-16)
4" IL Telescopic Adjustable Length Pipe, 50-305mm (24-100-15)
SFL Selkirk 5" IL chimney flue liner adaptor to flex liner. 0471605