Heta SCAN-LINE 40 Operating Instructions Manual page 18

Continue with the back stone and
then the last side stone. Place brackets
on top. No pins are nessesary Fig. 8
Fig. 9
18
Fig. 8
Top flue - break of the inner ring.
Finish with the topstone - placein it
loose on top. If the stove has a top
flue, break of the inner ring. Fig. 9
Scan-Line 40