VALTIS OGREVANJE d.o.o.
11
TECHNICAL
CHARACTERISTICS
Viva
GT
is composed of unseparated round firewood, metre firewood or prepared firewood, and
whether the wood is fresh from the forest or kiln-dried. From freshly harvested wood with
60% water to the fibre saturation point at 25%, the volume of the wood is constant. If you
dry it any longer, the wood starts to shrink. As it shrinks, air-dried wood (15 % water
content) has more wood per cubic metre than freshly harvested wood. In conifers, this is 5-
6%, and in deciduous trees 6-9%. The firewood is crooked. The longer the log, the less
wood (or more air) there is per cubic metre. There is usually more space between crooked
deciduous trees than between straight conifers. Another difference: round firewood can be
stacked much more compactly than metre firewood. If you chop them yourself, you get 15%
more wood per cubic metre for round firewood.
Approximately 0.9 m³ of half-metre-long beech firewood or 1.3 m³ of spruce
firewood are needed per kilowatt of heat load per year. 8 m³ of half-metre-long spruce
firewood or 5.5 m³ of beech should be enough for about 1000 l of heating oil.
We recommend burning dry
beech firewood up to a
maximum length of 500 mm.
HAZARDOUS
•
Every door on the boiler
must be closed when the
boiler is in operation.
•
After loading the firewood,
make sure that the loading
door is closed.
Summary of Contents for VIVA GT 25
Page 1: ...VALTIS OGREVANJE d o o INSTRUCTIONS FOR USE GASIFICATION BOILER VIVA GT 25 V_VIGT26102022...
Page 41: ...VALTIS OGREVANJE d o o 39 Viva GT 13 NOTE __________...
Page 42: ...VALTIS OGREVANJE d o o 40 Viva GT 14 Attachment...
Page 43: ...VALTIS OGREVANJE d o o 41 Viva GT WE WISH YOU MANY WARM DAYS USING OUR BOILER Viva GT Group...
