Fröling S3 15-31 kW

Fröling – premium Austrian boiler technology

A Fröling, a premium Austrian manufacturer is a specialist in log wood, pellet, and wood chip heating. The S3 series offers straightforward operation and a controlled combustion process for manual wood firing.

Fröling S3 – log wood gasification boiler

For central heating, using locally available firewood. Manual loading and induced draft fan design allow for well-organized wood heating. The offered equipment is designated in the catalog as 15–31 kW; the exact nominal rating of the specific version must be verified against the data plate.

Important technical solutions from the factory S3 documentation

• Manual log wood loading: simple fuel supply with storable firewood.
• Induced draft fan: assists the airflow required for combustion and the evacuation of flue gases.
• Separate ignition and loading access: more transparent daily operation.
• Half-meter firewood logs: the 2012 factory manual specifies a maximum length of 55 cm.
• Firewood with 15–25% moisture content: fuel complying with factory specifications is the basis for proper operation.
• Heat exchanger cleaning: the manual discusses versions with and without a WOS lever; the specific boiler equipment will be agreed upon separately.

The attached S3 Turbo factory user manual is B0610512, 2012 edition. Verification of the control system and manufacturing year is necessary; this offer is not proven to include a touch screen, lambda control, or automatic ignition.

Comparative price of a new wood gasification boiler

New Fröling S3v Turbo 30: 8,742.85 EUR gross, including 19% German VAT; 7,346.93 EUR net. Source: Wolf Online Shop, verified: October 5, 2026 . This is a different, new 30 kW model, not the exact new price of the old S3.

The advertised new S3v includes lambda control, S3200 Touch control, and cleaning tools; automatic ignition is optional. Buffer tank, return-riser group, transport, and installation are to be agreed upon separately. The equipment of the new model is not the accessory list of the used boiler.

Brands featured 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, Wood 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, Control systems, Water treatment.

Can't find what you need? Let us know the type, capacity, and intended use of the equipment you are looking for, and we will source it! Request a quote or chat with us on WhatsApp at +36 30 667 0076.