Thank you for your question.
The tiger must have an air gap of 400mm to the rear and 300mm to the side between the stove and any combustible materials.
If the stove is being placed in a non-combustible fireplace chamber then we would recommend an air gap of 100mm to the back and 150mm to the sides. This will give enough room for the warm air to circulate around the stove and also allow access for maintenance.
Hope this helps?