Fröling T4 150 kW

Fröling – premium Austrian biomass heating technology. The manufacturer from Grieskirchen develops wood chip, pellet, and log wood systems.

T4-150 – 45–150 kW wood chip and pellet boiler. Based on the original data plate and factory T4 series documentation, it can be designed for central heat supply of larger buildings, with mechanized fuel and ash handling.

• Adjustable heat output between 45–150 kW: The boiler can be adapted to the instantaneous heat demand, therefore it can also be used at partial load.
• Automatic tilting grate: The fixed feeding zone and the tilting part guide the fuel together; tilting removes the ash and the residues remaining from combustion.
• Silicon carbide combustion chamber: The heat-resistant, high-temperature combustion zone supports the more complete burnout of the combustible gases of wood.
• Broadband lambda control: The control system measures the oxygen content of the flue gas to adjust combustion to changing fuel.
• Primary and secondary air, with draft control: Air is fed separately to the fuel bed and post-combustion, while the system also regulates the pressure conditions in the combustion chamber.
• Automatic WOS heat exchanger cleaning: Turbulators moved in the tubes of the three-pass heat exchanger remove deposits and help maintain good heat transfer.
• Automatic firebox ash removal: Ash from the burner chamber is mechanically conveyed into the collector, reducing the labor of regular manual ash removal.
• Mechanical removal of heat exchanger ash: The ash separated during cleaning also gets into the shared ash collector; the large, wheeled container can be easily taken to the place of emptying.
• Feeding auger and rotary valve: The stoker feeds the fuel, and the rotary valve connected to it serves to protect the feeding route against burn-back.
• Speed-controlled exhaust fan: The control system adjusts and monitors the operation of the flue gas fan for boiler operation.
• Lambdatronic H 3200 system control: The boiler, heating circuits, and storage tanks can be connected into a coordinated heat supply.
• Wood chip and pellet operation: The T4 combustion system is designed for both wood-based fuels; storage and feeding can be matched to the selected fuel.
• Automatic ignition from residual embers or with an ignition fan: After a shorter heating break, the fed material can ignite from residual embers; after a longer standstill, the hot air blower starts combustion.

Factory documentation – open ↗

New Fröling T4e 150 ESP, 14742ESPL, with left-side stoker: 38,259.90 EUR gross / 32,151.18 EUR calculated net, with 19% German VAT. Price date: October 8, 2026. Price of the boiler, stoker, and ESP particulate filter; transport and installation are separate costs.Price source of new equipment – open ↗

The equipment has been sold; request an offer for the procurement of a similar device.

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Categories of 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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