Biomass Boilers
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Service and Maintenance

No other biomass boiler manufacturer or supplier is able to offer up to 20 year boiler warranties and 20 year all inclusive warranties if incorporated within one of our Packaged Modular Plant Rooms (Green Heat Modules – GHMs)


Hargassner Products Covered

Woodpellet boilers from 9kW to 199Kw

(Classic 9-22kW, Classic Lambda 25-60kW and WTH 70-200kW)

Wood chip boilers from 25kW to 199kW

(WTH 25-55kW, WTH 70-100kW and WTH 150-199kW)


Download our comprehensive Service and Maintenance brochure here.


20 Year Warrenty (1)

Available Warranty Packages

20 year Warranty all inclusive if incorporated within a GHM (Green Heat Module) Packaged Modular Plant Room incorporating a Hargassner pellet or chip boiler up to 199kW.

All internal components including AT, pumps, valves, motors, PHE

The Module also has a 40 year paint warranty (30 year coastal) as well as a 25 year structural and thermal integrity performance warranty.

Service & Maintenance Contract Required.


Our Standard boiler warranty is 5years on boiler body and electrical components. Extended warranties can be purchased as below

10  year Warranty

For all chip, or pellet boilers up 199kW

Service & Maintenance Contract Required.

One off payment required

7 year Warranty

For all chip or pellet boilers up to 199kW.

Service & Maintenance Contract Required.

One off payment required

5 year Warranty

Standard warranty for all boilers

Service & Maintenance Contract Required.

Free – no one off payment required


Terms and Conditions

With the exception of our standard 3 year warranty, all 5yr,

7yr, 10yr and 20yr warranties must be specified at time of boiler

order and a Service & Maintenance Contract must be entered

in to with Wood Energy Lt or one of our Registered Installers who have completed the Module 3 Service & Maintenance Training Course . Boilers must be serviced by either ourselves or one of our

Registered Installation partners and no other entity.

Contact our Sales Dept for a Service & Maintenance quotation or details of our National Registered Installer Network