Attack DP Gasification Boiler

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The ATTACK DP Profi wood gasifying boiler is designed for the economical and ecological heating of family houses, bungalows, small plants, workshops and similar premises. The specified fuel for the ATTACK DP 45 boiler is dry wood. When the feeding chamber is full, an approx. continuous combustion of 8 to 12 hours is possible.

The “ATTACK DP Profi” wood gasifying boiler is controlled by an electronic regulator which is specifically designed for the temperature control of wood combustion boilers. The regulator keeps a constant check on the water temperature in the boiler and the value is shown on the display. At the same time, it controls the waste gas ventilator and central heating pump.

Models DP 35, 45, 75, 95 Profi
Modern design
Burns soft and hard wood in its large combustion chamber. Fuel mixtures such as coal/wood, briquets, corn cobs and wood/saw dust mixture acceptable.
High combustion efficiency – low fuel consumption
Minimum waste
Simple use and cleaning
Automatic boiler switch-off when fuel runs out
Flue ventilator ensures uniform and effective combustion
Possibility of loading large pieces of wood
Equipped with a cooling circuit against the water in the boiler overheating

Technical Specification

Attack Model		DPX35	DPX45
Boiler output	kW	35 (120kBtu)	45 (154kBtu)
Surface of exchanger	f2	30	32.6
Volume of fuel chamber	f3	367	420
Dimension of feeding opening	inches	9.25 x 17.5
Prescribed chimney draught	Pa	23	23
Max. operation overpressure of water	kPa	250
Pressure loss of water (T 10K)	kPa	4.4	6.6
Pressure loss of water (T 20K)	kPa	1	1.8
Boiler weight	lb	1014	1080
Diameter of flue gas connection	inches	5.9
Boiler height – „A“	inches	48.8
Boiler width – „B“	inches	27.6
Boiler depth – „C“	inches	52.75
Depth of chamber – „D“	inches	27.2
Protection of electrical parts	IP	21
Electric output	W	50	60
Boiler efficiency	%	89	90
Boiler class		3
Flue gas temperature at nominal output	°F	356	374
Substantive flue gas overflow at nominal output	kg/s	0,021	0,027
Maximum noise level	dB	65	65
Prescribed fuel	Dry wood with heat value of 15-17 MJ/kg, water volume min. 12% -max. 20% diameter 80-150 mm
Average fuel consumption	Kg/h	9,1	11,75
Consumption per season		1 kW = 1 m3
Maximum length of wood logs	inches	25.5″	29.5″
Burning time at nominal output	hod	3	3
Volume of water in boiler	gallons	29	33.8
Minimum volume of equalisation basin	l	237.75	317
Connection voltage	V/Hz	110/60

Attack Model:	DP 75 Profi	DP 95 Profi
Nominal output	75 kW (256 KBTU)	95 kW (325 KBTU)
Range of output setting (PROFI version)	30-75 kW (102-256 KBTU)	38-95 kW (140-325 KBTU)
Prescribed chimney draught	26 Pa	28 Pa
Max water operation overpressure	250 kPa (35 PSI)
Pressure loss of water (T 10K)	8.8 kPA (1.3 PSI )
Pressure loss of water (T 20K)	1.6 kPa (0.23 PSI)
Diameter of flue gas outlet	200 mm (8″)
Loading chamber dimensions		L 41″x W 21″x H 31″
Diameter of C.H. flow connection	2 “
Diameter of C.H. return connection	2 “
Protection level	21 IP
Maximum electric load	4 A
Boiler class	3
Flue gas temperature by nominal output	350 °F
Flue gas flow by nominal output	0.033 kg/s	0.035 kg/s
Average wood consumption	18.7 kg/h	29.2 kg/h
Max wood log length	1000 mm (40″)
Operation time by max.output	2.5 h	3.5 h
Volume of water in boiler	164 l (43 Gal)	250 l (65 Gal )
Recommended accumulation tank min. volume	500 Gal
Range of water temperature setting	65-90 °C ( 150 F to 195 F)
Current carrying capacity of boiler regulator´s contacts of (PROFI version)	115V/4A
Average wood consumption per season	1kW=0.9m3
Efficiency	86.2 %	80.6 %
Fuel	Seasoned Wood (can be mixed with coal 40%)
Electrical power connection	115V/60Hz
Weight	650 kg (1422 lb)	800 kg (1900 lb)
Heat-transfer surface	3.6 m2 (39 sq/f)	5.6 m2 (60 sq/f)
Max. noise level	65 dB
Feeding door size	235×445 mm ( 9.2″ x 17.5″)
Boiler width	27.5”	30″
Boiler height	57.5”	61″
Boiler depth	66”	66″