Technical data

7.0 Site Requirements

7.8 Flue Dimensions

See Section 2.2. The standard horizontal flue kit allows for

flue lengths between 270mm (10

”) and 800mm (32”)

from elbow to terminal (Fig. 17).

The maximum permissible equivalent flue length is: 4

metres (Fig. 18).

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. 19)

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

model number.

4. The flue terminal guard should be positioned centrally

over the terminal and fixed as illustrated.

7.10 Vertical Flue

1. Only a flue approved with the Baxi System 100 HE Plus

can be used.

2. For information on vertical flues consult the Baxi Flue

Guide Brochure or Notes for Guidance supplied with the

vertical flue pack.

Fig. 17

Fig. 18

Pictorial examples of flue runs where EQUIVALENT flue length equals 4m

Fig. 19

270mm 800mm

0.5m