FIREWOOD BOILER
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.
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.

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The latest technology

Flue pipe connection can be rotated to horizontal or vertical orientation
Speed-regulated induced draught fan
Integrated particle separator (electrostatic precipitator) available as an option
WOS system
(Efficiency Optimisation System) for optimum cleaning of the heat exchanger pipes
Large fuel loading chamber for logs up to half a metre long (up to 56 cm)
Lambdatronic 5000 controller with 7" glass touch display for even easier operation
Carbonisation gas extraction system prevents smoke escaping during reloading
Automatic ignition with silent ceramic igniter (optional)
Large fuel loading chamber doors
Quick heating-up with special air ducts (optional: automatic ignition)
Optimised V-combustion chamber made of silicon carbide for even better efficiency and lower emissions
Large maintenance openings for easy cleaning from the front
Individual controller for the heating system
Lambdatronic 5000 controller
With the new Lambdatronic 5000 boiler controller and the modern 7″ glass touch display, Fröling is moving into the future. The new design is impressive, not only for its intuitive operation but also its numerous new features. The most important
components can be freely selected in the tile overview and information and error messages can be customised. For example, the control system will inform you when the ash box needs to be emptied. This makes operating and running the system even simpler and easier to understand. The intelligent control management enables the almost unlimited integration of heating circuits, storage tanks and hot water tanks.
Advantages
- Precise combustion control by a Lambda controller using a Lambda probe
- Connection of heating circuits, water heaters and buffer storage tanks Management systems
- Integration capability for a solar panel system
- LED frame for status display with illuminated presence detection
- Simple & intuitive operation
- Various SmartHome solutions (e.g. Loxone, Modbus TCP) Remote control from the Living room (room console) or via the Internet (froeling-connect.com)



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
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 |
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 |
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
For you personally
Information & advice
You would like to have further product information or you have general questions regarding our company?
