S4 Turbo F
Available with optional pellet flange - Pellet unit can be added any time.
The S4 Turbo F with pellet flange (up to 40kW) firewood boiler is the ideal solution for people who are burning firewood and pellets: the pellet unit can be retrofitted at any time. What you then get is the SP Dual, a dual fuel boiler that can automatically switch between firewood and pellets. Thanks to its modular design, the S4 Turbo F boasts important advantages even before it is put into your boiler room. It is so compact that installing it is child’s play, even in confined boiler rooms. Thanks to its modular design with just a single exhaust pipe, it is particularly easy to retrofit a pellet unit at any time.
Special carbonisation gas extraction system S4/SP Dual

- No smoke escapes during re-filling
- The boiler room stays clean
Complete overview around the clock with the new Froling App
- Easy and intuitive operation of the heating boiler
- Status values can be called up and changed in an instant
- Individual naming of the heating circuit
- Status changes are sent directly to the user (e.g. per email or push notifications)
- No additional hardware required (e.g. internet gateway)
- more details: see PDF
- Brochure S4 Turbo 2.0 MB
- Brochure SP Dual2.2 MB
- Brochure tank system 4.4 MB
- EULabel product S4 Turbo1.6 MB
- EULabel system S4 Turbo1.9 MB
- EULabel FactSheet S4 Turbo82 KB
- EULabel FactSheet S4-Turbo S4-Turbo-F S4-Turbo-BW EN.pdf82 KB