JAYLINE UL200, Инструкция для владельца, Страница: 7 / 14

page 7
www.jayline.co.nz MARCH 2021
Important points to remember
• Do not attempt to add fuel (or any objects) into the lower chamber.
• Keep the lower door closed at all times during operation
• Because of the high temperatures achieved, surface colour may change
PURCHASING THE FIREWOOD
The quality of the firewood you burn can have a dramatic effect on the efficiency and operation of the heater.
The main factors that affect the burning characteristics of firewood are moisture content, tree species and
piece size.
The moisture content of the wood affects the rate at which it burns and the efficiency of combustion. When
trees are cut, the wood moisture content ranges between 35% and 60% by weight. If you attempt to burn
wood this wet it will be hard to ignite, slow to burn and will hiss and sizzle in the firebox. So much energy will
be consumed in boiling off the excess water that the efficiency of combustion and the heat to your home will
be low, condensation and corrosion may be occurring in the flue and smoke may be causing problems to
your neighbours. Properly seasoned wood ignites readily and burns efficiently.
PLEASE NOTE: WOOD WITH A MOISTURE CONTENT OF 10% - 25% IS THE RECOMMENDED WOOD
TO USE IN CLEAN AIR ZONES
Firewood should be cut and split in the early spring and stacked under cover, with good ventilation,
to be ready for burning when required.
Look for cracks in the end grain as a sign of dry wood. Stacks of firewood should be in an open area so that
air can circulate through them. During the summer, as warm breezes flow through the stacks, carrying away
the evaporating water, the moisture content of the wood will fall to around 20%. At this moisture content the
wood is ready for burning. This can be checked with a moisture meter.
Although the energy content of dry wood per kilogram is almost the same regardless of species, some burn
differently because of differences in density e.g pine is less dense than woods like Gum, Manuka or Black
Wattle. A denser wood will produce a longer-lasting burn, while a less dense wood will bring a fire to an
optimum burning temperature more quickly.
In general, commercial firewood dealers supply firewood in thicker pieces than modern wood-burning
heaters can handle. It is often necessary to split some of the wood again before using it. The thickest
piece size for high-efficiency and use in the UL200 fire should not exceed about 150mm (6 in.)
across the largest dimension, or weigh no more than approximately 1.3kg. A range of smaller pieces will
be needed for effective starting as described in the lighting instructions. Maximum log length should be
no more than 300mm.