Abstract: An indirectly heated, gas-fired tunnel oven is provided having upper and lower heating sections with upper and lower heating means defining a baking chamber between them. Each heating section has an associated gas-fired burner arranged to provide heated gases to each heating means through ducts. At least one section comprises a fan arranged downstream at least one heating means, which fan is arranged to drive a flow of heated gases through at least one section and a duct arranged to recirculate gases from the fan to a location upstream the heating means.

Abstract: A method pertaining to the baking of products (B) in a baking oven (1) in which the products are supported by at least one rotary oven trolley (17) comprises rotating the trolley through a number of revolutions in one direction (R1) during the baking process, and thereafter reversing the direction of rotation and continuing rotation of the trolley through several revolutions in the opposite direction (R2) before again reversing the direction of rotation of the trolley. The trolley (17) keeps the same axial position in both directions of rotation. An arrangement for carrying out the method includes a drive device (20-26) for alternating rotation of the oven trolley through an equal number of revolutions in both directions during the baking process.

Abstract: The invention relates to a convection oven for processing food products, preferably, an oven (1) for baking. This is provided with heat-generating devices (4).According to the invention, the heat-generating device is a catalytic burner (4) that creates at least the main part of the heat, whereby higher efficiency is achieved, less space is needed, controllability is greater, and the process is more environmentally friendly.The invention also relates to a method for generating oven heat by means of catalytic combustion.

Abstract: An arrangement for generating steam in ovens, particularly baker's ovens, comprising a stand which carries a plurality of superposed and generally horizontally extending gutter means (8, 9) whose bottoms include a plurality of through-penetrating holes (11) which allow water to pass to underlying gutter means, and further comprising members (12) which are mounted adjacent the holes and which partially covering the holes. The members (12) have an elongated form and extend through holes (11) in at least two gutter means (8, 9) arranged one above the other, and the cross-sectional area of the members (12) in the hole region is smaller than the cross-sectional areas of the gutter means.