TECHNICAL FEATURES AND DIMENSIONS
4
2.
TECHNICAL FEATURES AND DIMENSIONS
2.1.
Technical features
The ECOTWIN boiler series is designed for manual function on solid fuel: wood, agricultural
residues, briquettes, with a minimum diameter of 15mm, and also wood pellet of 6-8mm
diameter automatically by means of an automatic pellet burner. The boiler is equipped with two
doors: one upper for cleaning of the heat exchanger and a lower door fuel loading and ash
removal. The wood combustion is performed by an air door and a chain thermostat regulator.
The boiler is made of steel, ideal material for thermal fluctuations, resistant to expansion and
contraction. Monobloc construction, with no other welded structures is an advantage of ECOTWIN
boiler. Also this boiler is protected against thermal shock.
The boiler body is designed so that all surfaces that are in contact with the flame are cooled by
water, including the grate where the ash and combustion residues fall. The two gas passes at
the top, the large number of flue pipes, large volume of the furnace and boiler water as well,
and symmetrical construction causes a high yield.
DESCIPTION OF COMPONENTS
Steel boiler body with heat exchanger
Removable rear smoke box with inspection cleaning door
Upper door for cleaning the heat exchanger
Lower door with flange for pellet burner mounting
Lower door with air door for manual wood function (optional)
Ash box positioned on the lower part of the fire chamber
Glasswool body insulation of 50 mm thickness
Electrostatically painted external covers
Chain thermostat regulator for wood combustion
Automatic pellet burner with feeder
Fuel tank
2.2.
Function principle
The function of the boiler is based on natural gas
evacuation through the chimney. The lower door
is equipped with flange for mounting a pellet
burner and air door.
Alternative function on wood can be realized by
unmounting the burner, and mounting the blind
flange in place, and connecting the chain
regulator to the air door.
With the optional kit which includes the second
lower door, altering between pellet and wood can
be performed easily by closing the corresponding
door.
On manual mode with wood, the fuel is
positioned on the grate. The pellet combustion is
controlled by the automatic pellet burner.
The combustion takes place in the fire chamber.
During the combustion the flame comes in
contact with the side walls of the fire chamber,
which are surrounded by water. The exhaust
gases are guided through the heat exchanger to
the smoke box, and afterwards evacuated to the
chimney.
Fig 2.
Boiler function
