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FIREWOOD BOILER

NEW! S5 Turbo

22 – 48 kW

NEU!
V-Combustion chamber
made of silicon carbide

Firewood boiler

NEW! S5 Turbo

Discover the world of modern firewood boiler technology! Our experienced engineers have set themselves high targets for the new S5 Turbo, and they have implemented them:

The new S5 Turbo boasts important advantages even before it is put into the 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 flue gas pipe, it is particularly easy to retrofit a pellet unit at any time.

Pellet unit can be added any time

The S5 Turbo with pellet flange is the ideal solution for people who are currently only burning firewood. Thanks to its modular design, the pellet unit can be retrofitted at any time.

Information/advice

You would like to have further product information or you have general questions regarding our company?

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Tecnical details
Download brochures
Download documents
Download Froling APP

The latest technology

Drehbarer Rauchrohranschluss

Flue pipe connection can be rotated to horizontal or vertical orientation

Drehzahlgeregeltes Saugzuggebläse

Speed-regulated induced draught fan

Partikelabscheider

Integrated particle separator (electrostatic precipitator) available as an option

WOS-Technik

WOS system
(Efficiency Optimisation System) for optimum cleaning of the heat exchanger pipes

Großer Füllraum

Large fuel loading chamber for logs up to half a metre long (up to 56 cm)

Regelung Lambdatronic 5000

Lambdatronic 5000 controller with 7" glass touch display for even easier operation

Schwelgasabsaugung

Carbonisation gas extraction system prevents smoke escaping during reloading

Automatische Zündung

Automatic ignition with silent ceramic igniter (optional)

Große Füllraumtüre

Large fuel loading chamber doors

Anheizautomatik

Quick heating-up with special air ducts (optional: automatic ignition)

V-Brennkammer aus Siliziumkarbid

Optimised V-combustion chamber made of silicon carbide for even better efficiency and lower emissions

Wartungsöffnungen

Large maintenance openings for easy cleaning from the front

Keep track of everything with the Froling App

The Froling App allows you to check and control your Froling boiler online from
anywhere, at any time. You can read and modify the main status information and settings easily and conveniently online. You can also specify which status messages you want to be informed about via SMS or e-mail (e.g. when the ash box is to be emptied or in the event of a fault message).
The app is available in the Android Play Store and iOS App Store.

Advantages

  • Simple and intuitive operation of the boiler
  • Status information can be called up and changed within seconds
  • Individual naming of the heating circuits
  • Changes of status are notified directly to the user (e.g. via
    e-mail or push notifications)
  • No additional hardware required (such as an Internet gateway)

 

 

Smart Home

Loxone

Combine your Froling heating system with the Loxone Miniserver and the new Froling Extension and implement individual boiler control on the basis of the single room control of the Loxone Smart Home.

Modbus

Via the Froling modbus interface, the system can be integrated
into a building management system.

Brochures / EU Label

Brochure S5 Turbo 3.47 MB
EULabel_Produktlabel_S5 Turbo 0.73 MB
EULabel_Verbundlabel_S5 Turbo 0.88 MB
Produktdaten S5 Turbo VO 2015/1187 + VO 2015/1189 3.01 MB
NEW! S5 Turbo

Tecnical data

Technical data - S5 Turbo 22 30 34 40 48
Nominal output [kW] 22 30 34 40 48
Energy label Efficiency label (boiler + controller) _ A+ A+ A+ A+ A+
Fuel loading chamber capacity [l] 145 145 200 200 200
Fuel loading door (width/height) [mm] 380 /360 380 /360 380 /360 380 /360 380 /360
Water capacity [l] 115 115 175 175 175
Boiler weight [kg] 635 640 765 770 775
NEW! S5 Turbo

Dimensions

Dimensions in mm - S5 Turbo 22 30 34 40 48
L1     Length of the boiler (flue gas pipe connection at rear) 1305 1305 1335 1335 1335
L2    Clearance from the flue gas pipe top connection to the front face of the boiler 1185 1185 1215 1215 1215
L3    Length of boiler 1180 1180 1210 1210 1210
B1    Overall width of boiler including WOS lever 685 685 770 770 770
B2   Width of boiler 600 600 700 700 700
B3   Clearance from flow connection to side of boiler 510 510 555 555 555
B4   Clearance from flue gas pipe connection to side of boiler 190 190 190 190 190
B5   Clearance from return connection to side of boiler 120 120 120 120 120
B6   Clearance from drainage connection to side of boiler 300 300 350 350 350
B7    Clearance from safety heat exchanger connection to side of boiler 475 475 515 515 515
B8   Clearance between safety heat exchanger connections 60 60 75 75 75
H1   Height of boiler 1565 1565 1615 1615 1615
H2   Height, connection for rear flue gas pipe 1405 1405 1455 1455 1455
H3   Height, flue gas pipe top connection 1520 1520 1570 1570 1570
H4   Height, return connection 140 140 140 140 140
H5  Height, drainage connection 125 125 125 125 125
H6  Height of safety heat exchanger connection 940 940 990 990 990
H7   Height of flow connection 1345 1345 1395 1395 1395
Flue gas pipe diameter 129 129 149 149 149
NEW! S5 Turbo

Operating and maintenance areas

Recommended clearances - S5 Turbo [mm]
A    Insulated door to the wall 800
B    Door swing area* 800 (200)
C    Boiler side with WOS lever to wall 500
C    Back side to the wall 800
D    Side of boiler to the wall* 200 (800)
E    Maintenance area above the boiler** 500

** Maintenance area for removing the WOS springs upwards

Tecnical documentation

Bedienungsanleitung Kombikessel SP Dual 22-28 (ESP) S5 Turbo mit S3200
17. junija 2025 B1950025 [DE]
Operating instructions Dual fuel boiler SP Dual 22-28 (ESP) S5 Turbo with S3200
1. julija 2025 B1950025 [EN]
Manual de instrucciones Caldera de lena y pélets SP Dual 22-28 (ESP) S5 Turbo con S3200
1. julija 2025 B1950025 [ES]
Mode d’emploi Chaudière mixte SP Dual 22-28 (ESP) S5 Turbo avec S3200
14. julija 2025 B1950025 [FR]
Manuale di istruzioni Caldaia combinata SP Dual 22-28 (ESP) S5 Turbo con S3200
1. julija 2025 B1950025 [IT]
Bruksanvisning Kombinationspanna SP Dual 22-28 (ESP) S5 Turbo med S3200
1. julija 2025 B1950025 [SV]
Bedienungsanleitung Lambdatronic P3200 - S5 Turbo
4. junija 2025 B1990025 Additional Info: [V50.04-B05.22] [DE]
Service handbook Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [EN]
Manual de servicio Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [ES]
Manuel d’entretien Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [FR]
Priručnik za servis Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [HR]
Manuale di assistenza Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [IT]
Servicehåndbok Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [NO]
Instrukcja obsługi Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [PL]
Priročnik za servisiranje Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [SL]
Servicehandbok Lambdatronic S 3200 - S5 Turbo
24. julija 2025 B1990025 Additional Info: [V50.04-B05.22] [SV]
Bedienungsanleitung Scheitholzkessel S5 Turbo 22-30 (ESP)
17. junija 2025 B1910125 [DE]
Operating instructions Firewood boiler S5 Turbo 22-30 (ESP) with Lambdatronic S 3200
1. julija 2025 B1910125 [EN]
Manual de instrucciones Caldera de leña S5 Turbo 22-30 (ESP) con Lambdatronic S 3200
1. julija 2025 B1910125 [ES]
Mode d’emploi Chaudières à bûches S5 Turbo 22-30 (ESP) avec Lambdatronic S 3200
1. julija 2025 B1910125 [FR]
Manuale di istruzioni Caldaia a legna S5 Turbo 22-30 (ESP) con Lambdatronic S 3200
1. julija 2025 B1910125 [IT]
Bruksanvisning Vedpanna S5 Turbo 22-30 (ESP) med Lambdatronic S 3200
1. julija 2025 B1910125 [SV]
Installation instructions Automatic WOS and electrostatic particle separator S5 Turbo / SP Dual (ESP)
1. julija 2025 M2810225 [EN]
Manual de instalación Sistema automático de optimización del rendimiento (WOS) y un separador de partículas electrostático S5 Turbo / SP Dual (ESP)
1. julija 2025 M2810225 [ES]
Instructions de montage WOS automatique et d'un séparateur électrostatique de particules S5 Turbo / SP Dual (ESP)
1. julija 2025 M2810225 [FR]
Manuale di installazione WOS automatico e separatore elettrostatico di particelle S5 Turbo / SP Dual (ESP)
1. julija 2025 M2810225 [IT]
Monteringsanvisning Automatiskt system för verkningsgradsoptimering (WOS) och elfilter S5 Turbo / SP Dual (ESP)
1. julija 2025 M2810225 [SV]
Montageanleitung Automatisches WOS und elektrostatischer Partikelabscheider S5 Turbo / SP Dual (ESP)
6. marca 2025 M2810225 [DE]
Montageanleitung Automatisches WOS und elektrostatischer Partikelabscheider S5 Turbo / SP Dual (ESP)
17. aprila 2026 M2810326 [DE]
Klemmenplan S5 Turbo 22-48 / S5 Dual 22-48
23. aprila 2025 M2910125 [DE]
Montage- und Bedienungsanleitung Automatische Zündung für S5 Turbo (ESP)
6. marca 2025 M2850025 [DE]
Installation and operating instructions S5 Turbo (ESP) - Automatic ignition
20. marca 2025 M2850025 [EN]
Instructions de montage et mode d’emploi S5 Turbo (ESP) - Allumage automatique
20. marca 2025 M2850025 [FR]
Manuale di montaggio e di istruzioni S5 Turbo (ESP) - Accensione automatica
20. marca 2025 M2850025 [IT]
Montage- und Bedienungsanleitung Automatische Zündung für S5 Turbo (ESP)
17. aprila 2026 M2850126 [DE]
Montageanleitung Scheitholzkessel S5 Turbo 22-30 (ESP) mit Lambdatronic S 3200
17. junija 2025 M2760225 [DE]
Installation instructions Firewood boiler S5 Turbo 22-30 (ESP) with Lambdatronic S 3200
1. julija 2025 M2760124 [EN]
Manual de instalación Caldera de leña S5 Turbo 22-30 (ESP) con Lambdatronic S 3200
1. julija 2025 M2760124 [ES]
Instructions de montage Chaudières à bûches S5 Turbo 22-30 (ESP) avec Lambdatronic S 3200
1. julija 2025 M2760124 [FR]
Manuale di installazione Caldaia a legna S5 Turbo 22-30 (ESP) con Lambdatronic S 3200
1. julija 2025 M2760124 [IT]
Monteringsanvisning Vedpanna S5 Turbo 22-30 (ESP) med Lambdatronic S 3200
1. julija 2025 M2760124 [SV]
Montageanleitung Kombikessel SP Dual 22-28 (ESP) S5 Turbo mit S3200
17. februarja 2026 M2870126 [DE]
Installation instructions Dual fuel boiler SP Dual 22-28 (ESP) S5 Turbo with S3200
27. februarja 2026 M2870126 [EN]
Manual de instalación Caldera de lena y pélets SP Dual 22-28 (ESP) S5 Turbo con S3200
27. februarja 2026 M2870126 [ES]
Instructions de montage Chaudière mixte SP Dual 22-28 (ESP) S5 Turbo avec S3200
27. februarja 2026 M2870126 [FR]
Manuale di installazione Caldaia combinata SP Dual 22-28 (ESP) S5 Turbo con S3200
27. februarja 2026 M2870126 [IT]
Monteringsanvisning Kombinationspanna SP Dual 22-28 (ESP) S5 Turbo med S3200
27. februarja 2026 M2870126 [SV]
Montageanleitung Pelletseinheit für SP Dual 22-28 (ESP) (Scheitholzkessel S5 Turbo mit S3200)
17. februarja 2026 M2880126 [DE]
Manual de instalaciónUnidad de pellets para la SP Dual 22-28 (ESP) Instrucciones para modernizar la caldera de leña existente S5 Turbo con S3200
27. februarja 2026 M2880126 [ES]
Instructions de montage Unité à granulés pour SP Dual 22-28 (ESP) Instructions pour moderniser la chaudière à bois existante S5 Turbo avec S3200
27. februarja 2026 M2880126 [FR]
Manuale di installazione Unità pellet per SP Dual 22-28 (ESP) Istruzioni per l'adeguamento della caldaia a legna esistente S5 Turbo con S3200
27. februarja 2026 M2880126 [IT]
Monteringsanvisning Pelletsenhet för SP Dual 22-28 (ESP) Instruktioner för eftermontering av befintlig vedpanna S5 Turbo med S3200
27. februarja 2026 M2880126 [SV]
Installation instructions Pellet unit for SP Dual 22-28 (ESP) Instructions for retrofitting existing firewood boiler S5 Turbo wirh S3200
27. februarja 2026 M2880126 [EN]
Montageanleitung Scheitholzkessel S5 Turbo 22-48 (ESP) mit Lambdatronic 5000
3. decembra 2025 M2950225 [DE]
Installation instructions Firewood boiler S5 Turbo 22-48 (ESP) with Lambdatronic 5000
7. januarja 2026 M2950225 [EN]
Manual de instalación Caldera de leña S5 Turbo 22-48 (ESP) con Lambdatronic 5000
7. januarja 2026 M2950225 [ES]
Instructions de montage Chaudières à bûches S5 Turbo 22-48 (ESP) avec Lambdatronic 5000
7. januarja 2026 M2950225 [FR]
Manuale di installazione Caldaia a legna S5 Turbo 22-48 (ESP) con Lambdatronic 5000
7. januarja 2026 M2950225 [IT]
Monteringsanvisning Vedpanna S5 Turbo 22-48 (ESP) med Lambdatronic 5000
7. januarja 2026 M2950225 [SV]
Montageanleitung Scheitholzkessel S5 Turbo 22-48 (ESP) mit Lambdatronic 5000
17. aprila 2026 M2950326 [DE]

For you personally

Information & advice

You would like to have further product information or you have general questions regarding our company?

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Contact

Fröling Heizkessel- und Behälterbau Ges.m.b.H.
Industriestraße 12 | A – 4710 Grieskirchen

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Company

Froling is a pioneer in modern wood heating systems. The Froling signature is on many products from the groundbreaking invention of the firewood boiler with high-temperature combustion, from the wood chip burner with Lambda technology to the development of the internationally acclaimed pellet boiler.

A wide variety of well-known international quality awards underscores the ongoing success of the Austrian family company.

About us
Awards
Company history
Allgemeine Fragen

07248 / 606 – 0

Kundendienst, Störungen

07248 / 606 – 7000

Information, Beratung anfordern

Heating with biomass

Heating with wood is convenient, saves on heating costs, is a secure renewable raw material and is also carbon-neutral

Wood fuel
Why biomass?

Products

Froling offers you the complete heating system.
We produce pellet boilers, firewood boilers and wood chip boilers.

Innvoative solutions with a capacity range from 7 to 1,500 kW

Firewood boiler 15-60kW
Pellet boiler 7 - 350kW
Wood chip boiler 24 - 1000kW
Firewood and pellet boiler 15 - 40kW
Commercial boilers 150 - 1500kW
Heat and electricity electrical capacity of 46 - 56 kW / thermal capacity of 95 - 115 kW
Tank systems
Froling App