BURNER UNIT PRINCIPALLY FOR THE CULTIVATION OF BLUEBERRIES

摘要

A burner unit suitable for use in the burning of blueberry bushes comprises a frame having a front end attachable to a vehicle and a support device such as a roller for supporting the frame above the ground, the rear end of the frame carrying a generally vertically orientated combustion chamber supported above the ground. At least a part of the combustion chamber diverges laterally from an upper end towards a bottom outlet while maintaining a relatively narrow fore-and-aft dimension throughout its height, and such that the bottom outlet has a fore-and-aft dimension less than a quarter its width. An oil burner is mounted at the upper end of the combustion chamber and is directed downwardly, the shape of the combustion chamber and the positioning of the burner being such that flames from the burner are distributed across the width of the outlet, and are capable of producing temperatures at ground level suitable for flame cultivation of blueberry bushes, over the whole width of the frame.