WOOD CHIP and shavings heating system


750 – 1.500 kW

Wood chip and shavings heating system


Froling‘s Lambdamat is a unique, fully automatic heating system for burning wood chips, shavings and pellets. It not only offers innovative combustion technology, but also a high level of convenience and operational reliability. The boiler sizes in the “Communal” version are suited to fuels with a water content of up to 50%.

Thanks to the special combustion chamber shape, Froling’s Lambdamat is perfect for burning fuels of different qualities and with a high bark content. The hydraulic moving grate continuously transports the fuel through the combustion chamber, ensuring that even heavy fuels are completely burned. In addition to fuel loading by feed screws, this boiler technology can also be supplied with a hydraulic feed system.


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The latest technology


Multifunctional heat exchanger
which features large heat exchanger surfaces. Convenient maintenance is ensured by large and easy to reach cleaning and maintenance openings.


Tertiary air vents 
for increased efficiency during combustion. The fully controlled flue gas recirculation AGR (optional) optimises burning (output,
emissions etc.) with particularly demanding fuels.


Multi-layer high temperature chamotte
combustion chamber
for high efficiency and clean combustion.

Automatische Zündung

Automatic ignition 
A second ignition blower can be installed as an option for materials that are difficult to ignite (e.g. high humidity) .

Vollautomatische Entaschung

Fully automatic ash removal


Double tunnel vault
guarantees the optimum burn-out of fuels with a high water content


Secondary air openings 
ensure optimum combustion and a complete burn-out.


Hydraulically operated moving grate With primary air intake system keeps the fuel moving continuously and ensures complete burn-out (even with heavy fuels).

Systematic convenience

Mit der Kesselregelung geht Fröling in die Zukunft. Das intelligente Regelungsmanagement besteht aus hochwertigen Komponenten des Industriestandards und bietet eine Vielzahl von Einstellungs- und Visualisierungsmöglichkeiten für den individuellen, effizienten und stabilen Anlagenbetrieb. Die Bedieneinheit bietet zahlreiche Funktionsmöglichkeiten wie 5-Fühler-Pufferspeichermanagement, Heizkreis-bzw. Netztemperaturregelung, externe Leistungsvorgabe, Kaskadenfunktion, Einbindung, Überwachung und Steuerung zusätzlicher Umfeldkomponenten.


  • Powerful controller with big colour touch display

  • Safe and simple remote access via Froling visualisation software

  • Numerous functional possibilities

Brochures / EU Label


Technical specifications

Technical specifications 750 1000 1000¹ 1500
Nominal heat output                                                                       [kW] 750 980 1001 1500
Quantity of fuel required at nominal load                                [kg/h] 242 317 324 490
Flue gas pipe diameter                                                                  [mm] 400 450 450 500
Total weight excl. fittings                                                              [kg] 11440 14900 14900 23300
Heat exchanger water capacity                                                    [l] 1840 2390 2390 4240
Maximum permitted operating temperature                          [°C] 95² 95² 95² 95²
Permitted operating pressu                                                         [bar] 6 6 6 6

¹ Only available in UK.
² Higher temperatures available on request



Dimensions - Lambdamat Communal [mm] 750 1000 1500
H    Height of boiler 3600 3855 4585
H1  Height of flow connection / return connection 3660 3915 4660
H2  Height of flue gas pipe connection 3250 3570 4200
H3  Height of stoker incl. BBF 1220 1200 1500
B     Width of boiler 1630 1630 1850
B1  Width of ash container 1295 1275 1295
B2  Width of FGR 1075 1065 1075
L     Total length 3075 3675 4360
L1   Length of boiler 2710 3380 3935
L2   Length of compressed air cleaner 425 430 425
L3   Length of stoker incl. gears 1290 1290 1290
L4   Length of flue gas collection box 255 255 500

Technical documentation

For you personally

Information & advice

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