Quick Start Manual

7.0 Site Requirements

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