If you are looking for a boiler with low operating costs and comfort comparable with usage of a gas boiler, you have just found it. We are introducing you the ecological combined boiler ATTACK® WOOD&PELLET, suitable for burning of several types of fuel, especially soft and hard wood, briquettes and pellets. The boiler is intendended for heating of family houses, huts, small plants, workrooms and similar objects.
Combustion of pellets is ensured by the burner made from the best quality refractory steel. Burner operation is fully automatic. Boiler body is welded from the high quality boiler steel of 6 mm thickness, ensuring long life. Refractory concrete parts are made from the best quality material, strengthened by the refractory reinforcement. Furthermore, the most strained nozzle is treated by a special refractory cast iron, prolonging the boiler’s life, because it is resistant to scoring.
Big volume of the feeding chamber
To provide the high comfort, the boiler is equipped with the feeding chamber of big volume. Thereby there is an option of the continuous burning at full output for 6 hours. Moreover, if the boiler detects signal for heating, it can automatically start the pellet burning process, after the wood in the wood-gasifying boiler part burns out, without any action into the boiler operation. Thereby you can easily use advantages of the cheapest heat source – wood, in combination with the comfortable and also very cheap heat source – pellets.
High Efficient Combustion
Boiler achieves particularly high efficiency, exceeding 90,5 % by wood and 90,4 % by pellet combustion. This has been reached also thanks to the vertical tubular exchanger with extraordinary heat exchange area and special, automatically moved turbulators. Thereby is the declared efficiency ensured for the whole boiler’s life.
The boiler is equipped with the integrated aftercooling circuit, connected to the cold water and ensuring safe cooling down of the boiler in the case of its overheating. The emergency thermostat is the next safety element. In the case of overheating, it stops electrical power supply into the all electrical parts of boiler, except of the pump to cool the boiler down as soon as possible. If the boiler gets overheated, the electronics warns the user by a sound signal. If the boiler works under the pellet mode, it is able to lock the main door by the electrical lock, not to leave the door unperfectly closed or partly open. The boiler has a double protection against the backward burning – the high efficient turnstile feeder and the self-extinguishing hose.
Boiler cleaning is very easy. Turbulator and pellet combustion chamber are cleaned automatically. Boiler electronics can be supplemented with the additional modules, enabling control of accumulation tank, mixing circuits, D.H.W. storage tank, solar panels and other heat sources.
Boiler state can be also controlled via the LAN internet connection. Electronics is able to provide a month record of the information about operation.
Required boiler accessories
ATTACK PEL 5000 WP
There is an required accessory for the ATTACK WOOD&PELLET boiler that can be purchased and installed anytime when it is necessary – the pellet tank called ATTACK PEL5000 WP. Volume of this tank is 500 l and it can be installed near the boiler or up to the distance of 10 m, even in the another room. Pellets are supplied by the vacuum motor built into the ATTACK WOOD&PELLET boiler through hoses (available to be purchased separately). The cyclonic separator delivered together with the ATTACK WOOD&PELLET boiler is able to separate fine dust particles from pellets and thereby it keeps the environment in the boiler cleaner. The separator has to be connected to the outlet hose of the pneumatic pellet supply from the boiler. It can be installed on the wall for easier detaching of the bottom dust container. The separator does not need any additional motor and its operation is noiseless. Frequency of cleaning the separator depends on the amount of dust contained in pellets and on duration of the pneumatic supply. Normally it is necessary to do the cleaning every 2–6 weeks.
|Parameter||Unit||ATTACK WOOD&PELLET 25|
|Output range by wood||kW||12,5 – 25|
|Output range by pellets||kW||8 – 30|
|Volume of feeding chamber||l||160|
|Width × height × depth||mm||940×1620×1220|
|Boiler width without covering||mm||760|
|Efficiency – wood
|Efficiency – pellets
|Max. length of wood logs||mm||560|
|Flue gas temperature||°C||92-156|
|Prescribed chimney draught||Pa||23|
Documents to download
ATTACK LAMBDA TOUCH 2019
Manual for ignition and cleaning of combined boiler