KWB TDS Powerfire 45-150 kW

KWB – premium Austrian boiler technology

Founded in 1994, KWB, the premium Austrian manufacturer specializes in automatic biomass heating systems. The Powerfire series is designed for heat supply in larger buildings and sites.

KWB Powerfire TDS 150 – automatic heating, flexible fuel selection

adjustable output between 45–150 kW, wood chip and pellet operation, automated cleaning: the TDS 150 offers a well-controllable central heating solution for facilities with variable heat demand.

Key benefits

• Self-cleaning rotary grate: the movement of the grate continuously feeds the burning fuel, forms a more uniform fuel bed, and helps remove burned residue.
• Cyclone-type combustion chamber: the directed flow of flue gas promotes the burnout of combustible gases and the separation of fly ash.
• Broadband lambda control: by measuring the oxygen content of the flue gas, the control system adjusts the combustion air to the fuel and the instantaneous load.
• Automatic output control: the boiler adjusts its operation to the heat demand, allowing it to be used even at partial load, not just at full capacity.
• Automatic heat exchanger cleaning: turbulators moving inside the tubes regularly remove deposits and improve the transfer of flue gas heat to the heating water.
• Multi-stage ash separation: finer ash particles are also separated from the flue gas as it changes direction multiple times in the heat exchanger.
• Automatic ash removal and ash compaction: the system transfers and compacts the ash into a collector, reducing the frequency of manual ash removal and emptying. The control system also monitors the saturation level of the ash collector.
• Backfire protection: a gas-tight fire protection shutter separates the fuel feeding system from the combustion chamber.
• Wood chips and pellets: designed for wood chips of quality G30/G50, up to 45% moisture content, as well as wood pellets of appropriate quality.
• KWB Comfort control: in addition to boiler operation, the heat supply of heating circuits, the buffer storage tank, and domestic hot water can also be coordinated; the system can be expanded with modules.

Important factory data

• Output range: 45–150 kW.
• Efficiency with wood chips: 90.4% at nominal load, 92.9% at partial load.
• Maximum operating pressure: 3.5 bar.
• Maximum supply temperature: 90 °C.
• Wood chips: G30/G50, with a moisture content of maximum 45% according to factory documentation.

Application possibilities

• Industrial and agricultural sites, workshops.
• Accommodation facilities, institutions, larger buildings.
• Central heating serving multiple buildings.

Price of new equipment – for comparison

ETA eHACK 180, 180 kW: 58,011.96 EUR gross, including VAT. Price date: October 5, 2026 Source: Source of new equipment price – open ↗.

The 13180L-D-E-01 version features a left-side stoker, integrated return lift, electrostatic precipitator, and flue gas recirculation. Transport and on-site installation are separate.

Fuel and application: a system that can also be sized for heating horticultural facilities, workshops, and agricultural buildings. In case of sawdust, shavings, untreated carpentry waste, or cherry pits, please consult us regarding the specific boiler, the feeder, and the factory fuel specifications; their usability must be checked per type.

Brands available in the ProfiKazán selection

AGRO Forst & Energietechnik, Alfa Laval, Austria Email, Binder, Biral, Buderus, Clima, Delphis-therm, EDER, Elco, Fröling, GEA, Gilles, Grundfos, Grünbeck, Guntamatic, HAPPEL / Ziehl-Abegg, Hargassner, HDG, Heizbösch, Herz, Hoval, Kampmann, Kränzle, KSB, KWB, LOOS, Lopper, Lowara, Mawera, Nolting, ORION / AL-KO, Picopello, Pneumatex, Pollhuber, Prüller, Reflex, Remeha, Ruwac, Schwank, Sieger, Siemens, Spanex, Varem, Viessmann, Wilo, Windhager, Wolf, YORK.

Heating systems and related equipment in one place

Categories of our catalog: Spare parts, Chip feeders, Wood chip boilers, Wood gasification boilers, Gas boilers, Steam boilers, Heat exchangers, Heat pumps, Infrared heaters, Industrial vacuum cleaners, Industrial cleaning machines, Warm air heaters, Hot water storage tanks, Measuring instruments, Oil boilers, Pellet boilers, Pumps, Expansion vessels, Unit heaters, Multi-fuel boilers, Controls, Water treatment.

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