2 × KWB Powerfire TDS 300

KWB – premium Austrian biomass heating

The KWB premium Austrian manufacturer specializes in wood chip, pellet and log wood firing systems. Its Powerfire boilers are designed for heat supply of larger buildings and sites.

2 × Powerfire TDS 300 – total 600 kW

Two 300 kW wood chip boilers, sold together. For larger industrial, agricultural or institutional heat supply. With proper system design, the two units can be adapted to variable heat demand.

Key benefits

• Self-cleaning rotary grate: the movement of the grate continuously conveys the burning fuel, forms a more uniform fuel bed, and helps remove the burned-out 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: the controller measures the oxygen content of the flue gas to adjust the combustion air to the fuel and the instantaneous load.
• Automatic output control: the boiler adjusts its operation to the heat demand, so it can also be used 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 changing direction multiple times in the heat exchanger.
• Automatic ash removal and ash compaction: the system conveys the ash to a collector and compacts it, reducing the frequency of manual ash removal and emptying. The control system also monitors the saturation of the ash collector.
• Burnback protection: a gastight fire protection damper separates the fuel feeding from the combustion chamber.
• Wood chips and pellets: designed for G30/G50 or P16B/P45A quality wood chips, up to 45% moisture content, as well as good quality wood pellets.
• KWB Comfort control: in addition to boiler operation, the heating circuits, buffer storage and domestic hot water heat supply can also be coordinated; the system is expandable with modules.
• Two independent 300 kW boilers: heat generation can be divided into two units, which allows flexible system design for larger buildings and variable heat demand.

Factory data – per boiler

• Nominal output: 300 kW; factory partial load point: 73.5 kW.
• Wood chip efficiency: 93.3% at nominal load, 92.8% at partial load.
• Maximum operating pressure: 3.5 bar; maximum boiler temperature: 90 °C.

New boiler price – for comparison

ETA HACK VR 333, 13333-01: 94,267.42 EUR gross, including VAT. Source of new equipment price – open ↗, price date: October 5, 2026. Offer for a new 333 kW boiler and boiler-side stoker. The price of the complete extraction system, boiler room and installation is to be agreed separately.

Factory documentation – open ↗

Brands available in the ProfiKazán product range

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

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