91 %
Efficiency
Fuel storage
500 l
Quality
material
Automatic combustion
and cleaning
ATTACK DPX pellet is an ecological pellet boiler of the 5th emission class, which offers high-quality construction. High combustion efficiency of up to 91% saves significant heating costs. The boiler uses the design, construction, and all features of the DPX boiler with PROFI regulation. It is equipped with a fully automatic Pellet Burner Automatic for convenient and fully automatic pellet combustion and burner cleaning.
Suitable for every type of house
A pellet boiler with strong power and high efficiency is suitable for every type of house. Take advantage of the opportunity to get a new boiler with the Green Households program.
Boiler connection
Correct connection of the boiler to the chimney is very important. Every house has a different height and area. When choosing the right type of boiler for your house, the power to the chimney and the heating system is important. We always recommend consulting this topic with a service technician, chimney sweep, or designer.
- Suitable for everyday heating
- PID regulator – more precise and continuous control of fan speed and Fuzzy Logic control sensors
- Controls 2 pumps (heating circuit pump + accumulation tank or DHW charging pump)
- For solutions with an accumulation tank – built-in tank charging logic and discharge protection
- Simple operation and display with current operating information (boiler temperature, flue gas temperature, temperature in the accumulation tank)
- Parameter monitoring (fan operation, DHW/accumulation tank charging pump operation, circulation pump operation)
- Automatic boiler shutdown after fuel burnout
DPX Pellet does not need an accumulation tank
A great advantage of the ATTACK DPX Pellet boiler is its operation without an accumulation tank. Saved costs for the purchase and installation of an accumulation tank are not the only advantage. Insufficient space in the boiler room often becomes a problem, which becomes an obstacle to installing a wood boiler into a family house, which must operate with an accumulation tank.
Practical advice for the boiler
Boiler care
Find out everything necessary about wood boilers. How to quickly and effectively ignite the boiler. Why tar can form and how to correctly clean the boiler.
High efficiency and ecological combustion
We manufacture boilers so that they have the least impact on the environment, which we consider essential for life. Wood gasifying technology is, compared to combustion in a conventional boiler, highly ecological, efficient, and significantly less burdensome for the environment. Gasification takes place via precisely controlled technology. This improves the overall efficiency of wood combustion, and its values reach up to 91%. Higher efficiency is reflected mainly in costs, as you consume less fuel.
Pellet burner
ATTACK Pellet Burner Automatic offers comfort not only in fuel combustion but also in control. Pellets are automatically drawn from the fuel feeder and fall into the burner on the grate, where they ignite with electric ignition, and the combustion itself begins. You can easily set the burner power according to your requirements in the range of 8 – 30 kW, always 2 kW lower or higher. You can increase comfort in controlling the burner if you use a room thermostat to control its operation.
Technical data and documents for download
The pellet boiler ATTACK DPX Pellet offers high efficiency up to 91%, automatic pellet feeding and combustion, automatic burner cleaning, high-quality processing, and long life. Find out more about other technical data.
- Fully automatic combustion process
- Does not need an accumulation tank
- Automatic burner cleaning
- High combustion efficiency 91%
- Wide power range 25, 30, 35, 40, 45, 50 kW
- Refractory concrete pieces withstanding temperatures up to 1350 °C
| Parameter / Boiler type | unit | 25DPXPE | 30DPXPE | 35DPXPE | 40DPXPE | 45DPXPE | 50DPXPE | |
| Nominal boiler output | kW | 25 | 30 | 35 | 40 | 45 | 49,9 | |
| Power range | kW | 8–30 | 8–30 | 8–30 | 15 – 49,9 | 15 – 49,9 | 15 – 49,9 | |
| Heat exchanger area | m² | 2,52 | 2,78 | 2,78 | 3,03 | 3,03 | 3,03 | |
| Combustion chamber volume | l | 125 | 158 | 158 | 190 | 190 | 190 | |
| Upper door opening size | mm | 235×445 | 235×445 | 235×445 | 235×445 | 235×445 | 235×445 | |
| Prescribed chimney draft | Pa | 23 | 23 | 23 | 23 | 23 | 23 | |
| Max. working water pressure | kPa | 250 | 250 | 250 | 250 | 250 | 250 | |
| Pressure loss on the water side (ΔT 10 K) | kPa | 2,3 | 4,4 | 4,4 | 6,6 | 6,6 | 6,6 | |
| Pressure loss on the water side (ΔT 20 K) | kPa | 0,7 | 1 | 1 | 1,8 | 1,8 | 1,8 | |
| Boiler weight | kg | 480 | 510 | 510 | 540 | 540 | 540 | |
| Exhaust pipe diameter | mm | 150 | 150 | 150 | 150 | 150 | 150 | |
| Boiler height | mm | 1 237 | 1 237 | 1 237 | 1 237 | 1 237 | 1 237 | |
| Boiler width | mm | 791 | 791 | 791 | 791 | 791 | 791 | |
| Boiler depth – “C” with burner | mm | 1527 | 1570 | 1570 | 1818 | 1818 | 1818 | |
| Burner bottom – “J” | mm | 682 | 682 | 682 | 695 | 695 | 695 | |
| Burner top – “K” | mm | 968 | 968 | 968 | 960 | 960 | 960 | |
| Axial height of pellet feed – “L” | mm | 1109 | 1109 | 1109 | 1103 | 1103 | 1103 | |
| Boiler depth with boiler door cover (mounted without burner) | mm | 1287 | 1332 | 1332 | 1505 | 1505 | 1505 | |
| Horizontal placement of smoke – “D” | mm | 980 | 980 | 980 | 980 | 980 | 980 | |
| Vertical smoke stack placement – “E” | mm | 1037 | 1037 | 1037 | 1037 | 1037 | 1037 | |
| Fan height – “F” | mm | 758 | 758 | 758 | 758 | 758 | 758 | |
| Reverse gear location – “G” | mm | 292 | 292 | 292 | 366 | 366 | 366 | |
| Location of the aftercooling circuit – “H” | mm | 284 | 284 | 284 | 352 | 352 | 352 | |
| Chamber depth | mm | 590 | 690 | 690 | 790 | 790 | 790 | |
| Covering electrical parts | IP | 21 | 21 | 21 | 21 | 21 | 21 | |
| Electrical power consumption | When ignited | w | 600 | |||||
| Operation | 96 | 160 | 160 | 190 | 190 | 190 | ||
| Standby mode | w | <5 | ||||||
| Boiler efficiency | 90,8 | 90,5 | 90,2 | 90,6 | 90,5 | 90,2 | ||
| Boiler class | 5 | |||||||
| Flue gas temperature at rated output | °C | 145 | 152 | 168 | 148 | 155 | 164 | |
| Flue gas temperature at minimum output | °C | 109 | 116 | 129 | 110 | 119 | 126 | |
| Flue gas mass flow rate at rated output | kg/s | 0,018 | 0,02 | 0,022 | 0,025 | 0,028 | 0,029 | |
| Flue gas mass flow rate at minimum power | kg/s | 0,005 | 0,007 | 0,009 | 0,012 | 0,014 | 0,015 | |
| Maximum noise level | dB | 65 | 65 | 65 | 65 | 65 | 65 | |
| Prescribed fuel | – | Wood pellets, Æ6 mm, l=35 mm, moisture content up to 12%, according to standards: DIN 51 731 – HP 5, DIN Plus, or EN 14961-2–A1 | ||||||
| Fuel consumption min/max | kg/h | 2,4 / 6,9 | 2,4 / 6,9 | 2,4 / 6,9 | 3,4 / 12,5 | 3,4 / 12,5 | 3,4 / 12,5 | |
| Boiler water volume | l | 100 | 110 | 110 | 128 | 128 | 128 | |
| Minimum volume of the buffer tank | l | 625 | 750 | 900 | 1 000 | 1 200 | 1 200 | |
| Supply voltage | V/Hz | 230/50 | ||||||
| Minimum return water temperature | °C | 65 | ||||||
| Heating water temperature setting range | °C | 65–90 | ||||||
| Load capacity of the controller contacts | V/A | 230/2 | ||||||
| Connection to the heating system – “A, B” | „ | G6/4″ | G2″ | |||||
Manufacturer, ATTACK, s.r.o. reserves the right to make technical changes to products without prior notice!
High-quality processing
All our products are manufactured with an emphasis on the selection of quality materials and the use of correct technologies and procedures. Special boiler steel, movable turbulators, and refractory concrete pieces withstanding temperatures up to 1350 °C. Quality processing and own know-how are a guarantee of reliable service and long life.
Higher boiler power with an accumulation tank
Even though the boiler can operate without an accumulation tank, to achieve higher boiler power, it is possible to purchase an accumulation tank and an ATTACK Oventrop mixing device for the boiler.
Find out what benefits an accumulation tank brings
Maximum usage comfort
The pellet boiler offers maximum heating comfort. Its comfort can be compared to a gas boiler or a heat pump.
Green Households subsidy program
Take advantage of a great chance to get a new modern device for a family house with a subsidy. Request a price offer, and we will handle the entire process, including the subsidy, for you.
Choose a service partner
Creating a high-quality and prompt service network for our customers is very important to us. Our service partners thus provide prompt service assistance to every customer throughout the year.
