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Modern wood pellet burning boilers ATTACK Pellet 30 Automatic Plus save environment by their perfect combustion. Their user enjoys comfort comparable to gas burning. They are intended for heating of dwelling houses, cottages, small plants, workrooms and similar objects.
Boiler constructively consists of combustion chamber with partitions and tubular heat exchanger. Beyond the heat exchanger, the flue gas goes into collector with chimney, that can be horizontally or vertically oriented by turning the flange for 180°C. There is a wood pellet burner built-into the boiler body.
The boiler is equipped with spiral fuel feeder (1,5 m), ensuring continual fuel dosing. The ATTACK Pellet 30 Automatic Plus boiler can be delivered with pellet container of 450 l volume (dimesions: 1.024 x 705 x 830 mm).
The ATTACK stainless steel burner is based on principle of fuel (pellet) falling – from feeder through supply hose and tube on the grate, where it is burned.
Pellets are produced by pressing wood chips in forming presses under high pressure while they are heated to about 100 °C. Cellulose in wood due to the temperature is softening which allows the molding to the shape of pellets and after cooling the pellets retain their shape.
The pellets are a by-product of wood processing. Their advantage is the extreme density and very low water content. They are used as a substitute to fossil fuels in boilers, furnaces and fireplaces are quality and environmentally friendly fuel. Their properties make them suitable for use in boiler rooms with automatic operation. Heating with pellets is particularly prevalent in Scandinavia.
By wood pellets combustion in the ATTACK® boiler, there is minimal ash production. Amount of ash depends on quality of pellets and represents approximately 1 % of the consumed fuel. Recommended fuel for the ATTACK Pellet 30 Automatic Plus are wood pellets with max. humidity of 12 %, diameter of 6 - 8 mm and max. length of 35 mm. Recommended ash content is 1 %. Heat value of the prescribed fuel should be 15–17 ,5 MJ / kg.