Industries 1994 LTD
PO Box 58652 Greenmount, Auckland
WWW.Warmington.co.nz
S:\data\Word\spec. sheets\eclipse-crystal eclipse\Free Standing Eclipse 11-07-06.doc
Created on 10/07/2006 10:09 a.m. Page 7 of 15
All dimensions are in millimetres mm
All dimensions are minimums
Ensure That You Have The Correct
and current Installation Details For
The Size of The Warmington Fire
That is to be installed.
Keep these Instructions for future reference.
Fire and flue system to comply to AS/NZS 2918
Due to continued product improvement, Warmington Ind LTD reserves the right to change product specifications without prior notification
When You Have Mastered the Techniques for Efficient Wood Burning, Here is what you should see:
•
When wood burns it should be flaming until only charcoal remains. If there are no flames, something. Is
wrong.
•
If there are firebricks in the firebox, they should be tan in colour, never black,
•
Steel or cast iron parts in the firebox should be light brown, never black and shiny.
•
With seasoned wood, correct air settings and proper loading arrangement you should expect instant
ignition of a new load of wood – the bottom pieces should be flaming by the time the door is closed.
•
The exhaust coming from the top of the flue system should be clear or white. A plume of blue or grey
smoke indicates smouldering, poor combustion, air pollution and probably low operating temperatures.
This means your fire is not only inefficient but also contributing to air pollution.
Smoke Spillage
A survey of households that use wood for heating showed that a large majority of users had experienced smoke
spillage from their appliances at least once. These episodes of smoke spillage can be reduced or eliminated through
proper appliance operation. The smell of wood smoke inside your home is a sign that the wood heating system is not
functioning properly. The smoke contains harmful air pollutants that can be irritating or even dangerous. Properly
designed, installed and operated wood-burning appliances do not spill smoke into the house. There are three main
reasons why some wood burning appliances smoke:
Bad flue system design:
There are design characteristics that can make a wood heater more likely to spill smoke.
Most of these characteristics result in low flue temperatures and low draft. For example, flue systems that run up the
outside wall of the house and are not correctly insulated can rob the heat from the flue and produce very little draft.
Each elbow in the flue pipe assembly slows down the flow of gases and causes a small restriction to flow. When a
flue system includes more than one elbow, the restriction can be enough to cause spillage.
Extreme negative pressure in the house:
Energy efficiency practices and new building code rules are making our
houses more and more airtight. This makes the houses energy efficient, but also makes them more sensitive to
depressurisation when air is exhausted from the house. Large, fan forced exhaust ventilators, like down-draft-type
kitchen stove exhausts, can cause extreme negative pressure in the house when they are operating. Because new
houses are tightly sealed, there are few holes to allow replacement air to enter, and the house pressure becomes
negative. This negative pressure works against flue system draft.
In severe cases, the negative pressure in the house overcomes the flue system draft and the appliance begins to spill
smoke, especially when a fire is started or when it dies down to coals. To prevent this extreme depressurisation, one
option is to link a large exhaust ventilator to a make-up air system which forces air into the home to replace the
exhausted air.
