Product Overview & Application Area
The ATTACK SLX 45 LAMBDA Touch is a manually fed wood gasification boiler for closed hot water heating systems. With a nominal output of 45 kW and an output range of 22.5 to 45 kW, this version is intended for larger central heating systems whose heat demand has been professionally matched to the boiler output.
The large-volume filling chamber holds 230 liters and accepts split, dry firewood with a length of up to 750 mm. This allows long logs to be used and larger amounts of fuel to be provided per burn.
Technology & Equipment
The LAMBDA Touch control processes boiler temperature, flue gas temperature, and residual oxygen content. On this basis, it controls the induced draft fan as well as the motorized primary and secondary air flaps. The combustion air is thus automatically adapted to the respective operating state.
The boiler operates with a tubular heat exchanger and turbulators. An integrated safety heat exchanger, in conjunction with a suitable thermal drain safety device, enables the dissipation of excess heat in the event of an impermissibly high boiler temperature.
Everyday Benefits
The 230-liter filling chamber and the maximum log length of 750 mm reduce the effort required for splitting and reloading fuel. With suitable wood quality, nominal operation, and correct system adjustment, an approximate burn duration of about 5.1 hours per filling is possible.
Touchscreen, lambda sensor, controlled induced draft fan, and motorized air flaps support controlled boiler operation. The automatic air control reduces the need for manual adjustments during the burn.
System Integration & Compatibility
For the ATTACK SLX 45 LAMBDA Touch, a buffer tank volume of 3,200 liters is recommended. The final sizing depends on the heating load, hydraulics, heat dissipation, operating mode, and the applicable technical requirements.
The flow and return connections are designed as G-2-inch connections. The flue pipe connection has a diameter of 150 mm, and the required chimney draft is 23 Pa. A suitable return temperature raising system must ensure a return temperature of at least 65 °C.
Technical data at a glance
| Nominal output level |
45 kW |
| Output range |
22.5–45 kW |
| Fuel |
Dry, split firewood |
| Combustion technology |
Wood gasification boiler |
| Fuel efficiency at rated output |
81.2% |
| Seasonal space heating energy efficiency |
79% |
| Energy efficiency class |
A+ |
| Energy efficiency index |
EEI 116 |
| Boiler class |
Class 5 |
| Maximum log length |
750 mm |
| Flue gas temperature at nominal load |
170 °C |
| Required chimney draft |
23 Pa |
| Flue pipe connection |
150 mm |
| Flow and return |
G 2 inch |
| Maximum operating overpressure |
2.5 bar |
| Recommended buffer tank volume |
3,200 liters |
| Electrical connection |
230 V / 50 Hz / 10 A |
| Auxiliary power at rated output |
63 W |
| Degree of protection |
IP20 |
| Dimensions H × W × D |
1,472 × 703 × 1,506 mm |
| Weight |
650 kg |
Installation
Installation, hydraulic connection, chimney connection, electrical connection, initial commissioning and safety inspection must be carried out by appropriately qualified specialists. The system requires an effective return temperature boost, a properly sized buffer tank, a safety valve, a thermal drain safety device and a permanently secured heat dissipation.
Notes
For proper operation, dry, split firewood with a recommended moisture content of approximately 12 to 20% must be used. Wet or unsuitable fuel can impair performance and combustion quality and promote tar and condensate formation.
The required boiler output, buffer tank size, system hydraulics and chimney design must be determined on a project-specific basis. The performance data do not replace a heat load calculation or professional planning.
Scope of delivery
- ATTACK SLX 45 LAMBDA Touch wood gasification boiler with integrated LAMBDA Touch control and lambda sensor