Heating appliance for air heating
AssigneeRomato
InventorSteven Tolleneer
Life of this patent
Estimating the term…
Abstract
A heating appliance including a burner and a heat exchanger including a bundle of heat conducting elements that form the primary channels through which the hot flue gases from the burner are guided via inputs that are opposite the burner, and which are connected together to close off the secondary channels that are formed between the aforementioned elements and through which the air to be heated can be guided. The burner is a premix burner that is positioned opposite the inputs of the primary channels, whereby the burner has a supply for a mixture of fuel and a sufficient quantity of air for the essentially complete combustion of the fuel, and whereby between the burner and the inputs of the primary channels there is a heat shield of a heat-resistant material with a passage opposite each of the aforementioned inputs.
Claims12
A heating appliance comprising:
- a burner (16),
- a heat exchanger (3) including a bundle of heat conducting elements (4) that form primary channels (5) through which the hot flue gases from the burner (16) are guided via inputs (6) that are opposite the burner (16), and which are connected together to close off secondary channels (8) that are formed between the heat conducting elements (4) and through which the air to be heated can be guided,
- wherein the burner (16) is a premix burner that is positioned opposite the inputs (6) of the primary channels (5),
- whereby the burner (16) has a supply (20) for a mixture (30) of fuel and a sufficient quantity of air for the essentially complete combustion of the fuel, and whereby between the burner (16) and the inputs (6) of the primary channels (5) there is a heat shield (17) of a heat-resistant material with a passage (22) opposite each of the inputs (6), whereby the periphery of each passage (22) has dimensions that are smaller than the dimensions of the periphery of the opposite input (6), and there are flashover channels (28) between two or more passages (22) that enable the flame (31) to flash over from one passage (22) to another passage (22), and which are constructed as grooves in the side of the heat shield (17) oriented towards the burner (16), wherein the periphery of the passages (22) in the heat shield (17) on the side of the heat shield (17) oriented towards the heat exchanger (3), has a smaller shape as the periphery of the inputs (6) of the primary channels (5).
Dependencies are inferred from the claim text.