WOOD BURNING BOILER COOKER ALTEA 110 SICURO TOP
10
EN - Rev. 1.2
Technical Specifications
Nominal heat input
kW (Kcal/h)
34.9 (16.8)
Nominal thermal output
kW (Kcal/h)
29.3 (14.7)
Nominal power released to heating water
kW (Kcal/h)
22.1 (8.2)
Nominal power delivered to room due to radiation
kW (Kcal/h)
7.2 (6.5)
Efficiency at thermal nominal power
%
84 (87.7)
CO at 13% oxygen at nominal thermal power
%
0.112 (0.091)
Nominal voltage
V
220
Nominal frequency
Hz
50
Expansion vessel litres/preloading bar
6 / 1
Maximum operating/recommended pressure
bar
2.5 / 1.5
Flue outlet diameter
mm
150
Minimum chimney draught at nominal thermal power
Pa
12 (11.4)
Combustion gas mass at nominal thermal power
g/s
17.4 (16.5)
Average exhaust flue gas temperature at nominal thermal power
°C
177 (138)
Hourly wood consumption *
kg/h
8 (3.84)
Wood loading interval *
min
60 (46)
Boiler unit capacity
litres
50
Width
mm
1100
Height
mm
870
Depth
mm
600
Minimum safety distance from flammable materials
mm
200
Weight of model with majolica sides
Kg
350
*Wood consumption is subject to the quality and dryness of the wood (4.375 kWh/kg).
The values in parenthesis (...) indicate the figures obtained in accordance with standard EN 13240.
Types of wood
Wood is one of the most precious materials offered by nature. For heating purposes, it must be verified that the features
of the wood satisfy some important requisites that must not be ignored, the most important of which is without a doubt
the correct seasoning or drying, in other words the wood must have the correct amount of humidity, around 10-15%,
therefore also the period of the year in which it is felled becomes important. This should coincide with the winter period.
Correct seasoning (at least 2 years) provides fuel with an excellent yield that is not very pollutant.
It must be kept in covered, well-aired places, already cut into pieces of a suitable size for the appliance.
The wood is divided into softwood and hardwood on the basis of the weight kg of a cubed metre of material. Softwoods
weighing 300-350 kg/m3 include fir, pine, poplar, European alder, chestnut and willow, while hardwoods weighing 350-
400 kg/m3 include beech, ash, elm, acacia and oak.
Softwood ignites easily, burns quickly, produces a long flame and is used in ovens requiring a long flame pass.
Hardwood is more compact, the combustion is slower with short flame, it lasts longer and is more suitable for domestic
central heating.
The wood to be burned for heating purposes has different features according to the plant variety from which it is
obtained. Not all woods are equal, and the drying time and the calorific value vary from plant to plant. The calorific value
depends on the humidity and density of the wood. Top quality woods are beech, ash, elm and acacia.
Avoid resinous
woods as they reduce the appliance's service life
.
Resinous woods generate a lot of soot and require the flue and the appliance to be cleaned more frequently. The
calorific value of the different types of wood depends greatly on their humidity and consequently the power of the
