The Flue System; General; Suitable Flue Systems - Enerzone Destination 1.6 Installation And Operation Manual

CONSTRUCTIONS AND CLEARANCES FACTORS FOR APPLIANCES HEAT SHIELDS
HEAT SHIELD CONSTRUCTIONS
Single layer of continuous material
Single layer of continuous material
NOTES:
1- Masonry may be used as a heat shield material.
2- Where heat shields are used to reduce appliance clearance dimensions, additional flue
shielding may also be required. Refer to AS/NZS 2918:2001.

8 THE FLUE SYSTEM

8.1 GENERAL

The flue system, made up of the flue system and the flue between the wood fire and the flue
system, acts as the engine that drives your wood heating system. Even the best wood fire will not
function safely and efficiently as intended if it is not connected to a suitable flue system.
The heat in the flue gases that pass from the wood fire and flue into the flue system is not waste
heat. This heat is what the flue system uses to make the draft that draws in combustion air, keeps
smoke inside the wood fire and safely vents exhaust to outside. You can think of heat in the flue
gas as the fuel the flue system uses to make draft.

8.2 SUITABLE FLUE SYSTEMS

Your wood fire will provide optimum efficiency and performance when connected to a 150 mm
diameter flue system. The cross-sectional area of the flue shall be within 20 percent of the flue
collar opening
34
WHICH ARE MORE THAN 45
o
OFF THE VERTICAL
Minimum air gap
dimensions (mm)
12
25
Destination 1.6 Installation and Operation Manual
Clearances factor
0.80
0.60