An apparatus for curing impregnated wood, wherein the apparatus comprises a chamber comprising: - a stack containing space for containing a plurality of elongated wood planks arranged in a stack of a height H s, width W s and length L s, - a heating element arranged within or adjacent to the stack containing space, wherein the size and orientation of the heating element is configured such that the heating element extends along at least the height Hs and the length Ls of the stack's surface area when the stack has been inserted into the stack containing space, - a flow generating device arranged outside the stack containing space and configured to generate an alternating circulating flow of curing fluid within the chamber and - a fluid flow restrictor arranged between the stack containing space and the flow generating device, wherein the flow generating device and the fluid flow restrictor are further configured such that the circulating flow of curing fluid is guided through the heating element generating a homogeneously heated and distributed flow of curing fluid in the stack containing space, and wherein the apparatus further comprises at least one motor arranged outside the chamber, the at least one motor being configured to operate the flow generating device via a connecting shaft, and wherein the chamber further comprises at least two heating elements, wherein the at least two heating elements are arranged on opposite sides of the stack extending along at least the height Hs and the length Ls of the stack's surface area when the stack has been inserted into the stack containing space. - a stack containing space for containing a plurality of elongated wood planks arranged in a stack of a height H s, width W s and length L s, - a heating element arranged within or adjacent to the stack containing space, wherein the size and orientation of the heating element is configured such that the heating element extends along at least the height Hs and the length Ls of the stack's surface area when the stack has been inserted into the stack containing space, - a flow generating device arranged outside the stack containing space and configured to generate an alternating circulating flow of curing fluid within the chamber and - a fluid flow restrictor arranged between the stack containing space and the flow generating device, wherein the flow generating device and the fluid flow restrictor are further configured such that the circulating flow of curing fluid is guided through the heating element generating a homogeneously heated and distributed flow of curing fluid in the stack containing space, and wherein the apparatus further comprises at least one motor arranged outside the chamber, the at least one motor being configured to operate the flow generating device via a connecting shaft, and wherein the chamber further comprises at least two heating elements, wherein the at least two heating elements are arranged on opposite sides of the stack extending along at least the height Hs and the length Ls of the stack's surface area when the stack has been inserted into the stack containing space. wherein the flow generating device and the fluid flow restrictor are further configured such that the circulating flow of curing fluid is guided through the heating element generating a homogeneously heated and distributed flow of curing fluid in the stack containing space, and wherein the apparatus further comprises at least one motor arranged outside the chamber, the at least one motor being configured to operate the flow generating device via a connecting shaft, and wherein the chamber further comprises at least two heating elements, wherein the at least two heating elements are arranged on opposite sides of the stack extending along at least the height Hs and the length Ls of the stack's surface area when the stack has been inserted into the stack containing space.