7.0 Site Requirements
20
© Baxi Heating UK Limited 2005
7.8
Flue Dimensions
See Section 2.2. The standard horizontal flue kit allows
for flue lengths between 270mm and 800mm from
elbow to terminal (Fig. 11).
The maximum permissible equivalent flue length is: 4
metres horizontal
(Fig. 12).
NOTE: Each additional 45° of flue bend will
account for an equivalent flue length of 0.5m.
eg. 45° = 0.5m, 90° = 2 x 45° = 1m etc
.
7.9
Terminal Guard
(Fig. 13)
1. When codes of practice dictate the use of terminal
guards, they can be obtained from most Plumbers’ and
Builders’ Merchants.
2. There must be a clearance of at least 50mm
between any part of the terminal and the guard.
3. When ordering a terminal guard, quote the
appliance name and model number.
4. The flue terminal guard should be positioned
centrally over the terminal and fixed as illustrated.
Fig. 11
Fig. 12
Pictorial examples of flue runs where EQUIVALENT flue length equals 4m
Fig. 13
270mm
800mm
0.5m
1m
1m
0.5m