Incorrect falls on flue classification

[stevetheplumber]

No just one clip on boiler side of joint. Also use pan head self tappers to fix flue pipes together

debatable if you should screw flues that dont come with screws as your now modifying the flue from manufacturers design

 

[Ermintrude]

Baxi and valliant mostly .i would rather be in a court defending using screws apposed to a few dead people. Positive fix.

 

[mutley racers]

No just one clip on boiler side of joint. Also use pan head self tappers to fix flue pipes together

That makes sense

 

[Ermintrude]

That makes sense

As always , legible coherent and factually correct posts!