Operating Instructions and Installation Instructions
EXAMPLE: PROTECTIVE BARRIER
FOR THE HEATING DEVICE AND SMOKE 
FLUE (dimensions in mm) 
Printed: TISKÁRNA ŘEHÁK Česká Lípa, Czech Republic, Tel.: +420 487 853 897 
PASSAGE THROUGH THE FIRE 
PROOF SMOKE FLUE WALL 
(dimensions in mm) 
1 – Wall 
2 – Smoke flue system 
3 – Cover (fireproof, non-metal) 
4 – Rosette 
5 – Protective pipe (fireproof, non-metal) 
6 – Insulating filler I (fireproof, e.g. glass fibre) 
7 – Insulating filler II (fireproof, e.g. filler designed 
for stoves) 
1 – Ceramic (metal) insert 
2 – Metal chimney body 
3 – Chimney walling 
4 – Metal smoke flue system 
5 – Hole in the chimney body 
6 – Sealed branch to the chimney body 
7 – Shim, fixed to the body with metal tapes 
8 – Dilatation gap between the brick shape and the chimney walling 
CORRECT – see. c, d  WRONG – see a, b 
Comment
s on ČSN 73 4201 :
 2008
CLEARANCE BETWEEN THE INSERT 
AND THE SURROUNDINGS 
SMOKE FLUE CONNECTION IN THE 
CHIMNEY BODY HOLE 
Minimum clearances 
A>=800 mm
B>=400 mm 
1 – Protective barrier for the heating device and smoke flue 
 protecting surrounding constructions against 
 heat 
2 – Hole for feeding and ashpan 
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