Quick Start Manual

8.0 Flue Options

8.1 Horizontal Flue Systems

1. The standard flue is suitable only for horizontal

termination applications.

2. All fittings should be fully engaged. The approximate

engagement is 40mm. Apply soap solution to the seal on

each fitting to aid assembly.

3. Maximum permissible equivalent flue lengths are:-

(60/100) (80/125)

Horizontal Concentric 10 metres 20 metres

4. Any additional “in line” bends in the flue system must be

taken into consideration.

Their equivalent lengths are:-

Concentric Pipes:

135° bend 0.5 metres

93° bend 1.0 metres

The elbow supplied with the standard horizontal telescopic

flue kit is not included in any equivalent length calculations

NOTE: Flue length is measured from point (i) to (ii) as

shown.

IMPORTANT: All flue systems must be securely

supported at least once every metre. Suitable pipe

supports are available as accessories.

Horizontal

Flues

(ii)

(i)

Plume Displacement Kit 60 /100 dia

1M Extensions 45° & 93° elbows

are also available - see Section 9.0

NOTE: Horizontal flue pipes should always be installed with a fall of at least 1.5°

from the terminal to allow condensate to run back to the boiler.

(ii)

(i)

This bend is equivalent to

1 metre

Total equivalent length =

A+B+C+2x90°Bends

This bend is equivalent to

1 metre