Thermal Modification Kilns
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Luxhammar is company specializing in production of thermal modification equipment for wood. Typically, power plants are included in the delivery of treatment plants.

Luxhammar Kilns can be built on any sizes and for all fuel types. We supply hardware and software for the production of quality products. We carry out the installation, starting the operation as well as perform maintenance and consulting on delivered units. For cost-efficient, unmanned production a remote operation of a plant is possible.

Wood Modification Kiln


The Luxhammar operation is based on enabling the innovations into viable business by intensive, continuous research and development work. Extensive experience in producing thermally modified wood gives the basis for producing highly reliable, high quality equipment. Instead of chemically treated wood and tropical hardwoods, modified wood can be used.

Last Updated on Wednesday, 11 January 2023 22:27


Modification kilns

Luxhammar delivers complete thermal modification units. 
Thermal modification is ecological method to protect wood against Bacidiomycetes. The treatment is based on natural method that makes wood protect itself.


Thermal modification

Thermal modification changes the properties of wood permanently. It improves resistance to decay and to weather, reduces moisture deformations and increases dimensional stability.



Luxhammar Modification Process

Luxhammar Thermal Modification process takes place in a air tight stainless steel kiln chamber, where lathed timber is treated with high temperature up to 250°C (482°F).



Thermally modified wood

The excellent resistance to decay and good dimensional stability, characteristic of Thermally Modified Wood makes it the ideal environmental friendly alternative in outdoor applications.



Properties of Thermally modified wood

Due to the high temperatures the chemical structure of the wood components are greatly changed. Thermall Modified lumber has altered biological and physical properties. 



Resistance to Decay

Thermal modification improves the resistance to decay which results from changes in the woods internal structure. The durability of thermally modified wood is uniform throughout the whole piece of wood.   



Treatment Levels

Five different treatment levels result in different properties, which makes it possible to use modified wood for all kind of applications.



Dimensional Stability

Deformations caused by condition changes are reduced by 30-90 % in thermally modified wood compared with untreated wood.




In thermal modification timber acquires a darker attractive shade of color, which is uniform throughout the boards. Desired shade of colour is obtained by choosing the right treatment level.



Sizes of Wood Modification Kilns

Luxhammar supplies varios of standard size kilns as well as custom made size.