
CONTENTS
1 Basic informations..................................................................................................... 3
2 Safety precautions..................................................................................................... 3
3 Specified symbols......................................................................................................4
4 Delivery contents BKH 50-98 Tunnel....................................................................... 6
4.1 Catalytic converter (optional)........................................................................................................ 8
4.2 Air connection box (optional)........................................................................................................ 9
4.3 cast iron heat exchanger rings (optional)..................................................................................... 9
5 Safety distances BKH Tunnel................................................................................. 10
6 Setting up.................................................................................................................. 12
6.1 Remove the transport locks........................................................................................................ 12
6.2 Set up the fireplace.....................................................................................................................13
6.3 Variant with external combustion air connection........................................................................ 14
6.3.1 Bottom connection (B).................................................................................................. 16
6.3.2 Side connection (S)...................................................................................................... 22
7 Variant with EAS or EOS.........................................................................................27
8 Fitting: catalytic converter...................................................................................... 38
9 Fitting: deflection combustion chamber - Tunnel................................................ 42
10 Variants heat exchanger..........................................................................................51
10.1 Connection with catalytic converter............................................................................................ 51
10.2 Connection without catalytic converter....................................................................................... 52
10.3 Heat exchanger - cast iron dome............................................................................................... 56
10.4 Heat exchanger rings.................................................................................................................. 59
10.5 Heat exchanger - MAS............................................................................................................... 68
11 Frame variants..........................................................................................................75
11.1 Mounting frame or door frame (BKH - side with lifting door)...................................................... 75
11.2 Mounting frame or door frame (BKH - side with tilting door)...................................................... 79
12 Disposal.....................................................................................................................85
13 Technical data.......................................................................................................... 86
2 Installation Manual BKH 5.0 Tunnel 50-98 green (1.12) © 2023 Brunner GmbH