The present invention provides a method of preventing high temperature corrosion on a heat exchanging surface of a biomass boiler, including: a first feeding step, supplying a first biomass fuel to the boiler; a deposition step, performing combustion on the first biomass fuel during initial operation of the boiler, and forming an inert deposition layer on a surface of a heat exchanger of the boiler; a second feeding step, supplying a second biomass fuel different from the first biomass fuel to the boiler; and a normal combustion step, performing combustion on the second biomass fuel. A direct contact of an alkali metal chloride with a metal pipe wall is prevented by forming an inert deposition layer on the surface of the heat exchanger of the boiler in the deposition step, thereby establishing a physical barrier between the heat exchanging surface of the boiler and the alkali metal chloride to effectively solve a problem of preventing corrosion on the metal pipe wall of the boiler.

The present invention provides a method of preventing high temperature corrosion on a heat exchanging surface of a biomass boiler, including: a first feeding step, supplying a first biomass fuel to the boiler; a deposition step, performing combustion on the first biomass fuel during initial operation of the boiler, and forming an inert deposition layer on a surface of a heat exchanger of the boiler; a second feeding step, supplying a second biomass fuel different from the first biomass fuel to the boiler; and a normal combustion step, performing combustion on the second biomass fuel. A direct contact of an alkali metal chloride with a metal pipe wall is prevented by forming an inert deposition layer on the surface of the heat exchanger of the boiler in the deposition step, thereby establishing a physical barrier between the heat exchanging surface of the boiler and the alkali metal chloride to effectively solve a problem of preventing corrosion on the metal pipe wall of the boiler.

Described are combustible structures. For example, a combustible structure includes a starter fuel chamber with a starter fuel, an external lighter opening, and an external air opening. The combustible structure includes a conveying fuel chamber adjacent to the starter fuel chamber and including a conveying fuel. The combustible structure includes a partition between the conveying fuel chamber and the starter fuel chamber, the partition including an opening such that combustion in the starter fuel chamber can spread to the conveying fuel chamber through the opening. The combustible structure includes a fuel chamber that includes an artificial fire log and an external vent. The combustible structure includes a retaining structure that provides for ease of transport and holds the artificial fire log in place such that combustion in the conveying fuel chamber spreads to the fuel chamber.

Described are combustible structures. For example, a combustible structure includes a starter fuel chamber with a starter fuel, an external lighter opening, and an external air opening. The combustible structure includes a conveying fuel chamber adjacent to the starter fuel chamber and including a conveying fuel. The combustible structure includes a partition between the conveying fuel chamber and the starter fuel chamber, the partition including an opening such that combustion in the starter fuel chamber can spread to the conveying fuel chamber through the opening. The combustible structure includes a fuel chamber that includes an artificial fire log and an external vent. The combustible structure includes a retaining structure that provides for ease of transport and holds the artificial fire log in place such that combustion in the conveying fuel chamber spreads to the fuel chamber.

Techniques for controlling a solid fuel combustion appliance, e.g., a wood burning stove, are disclosed. A control system measures an exhaust gas temperature of airflow through an outlet of the solid fuel combustion appliance. The control system determines a derivative of the exhaust gas temperature with respect to time. The derivative of the exhaust gas temperature with respect to time is compared to a predetermined threshold. The control system modulates the inlet damper in response to determining that the derivative of the exhaust gas temperature with respect to time reaches the predetermined threshold.

A chimney starter (1) including a hollow element (2), for receiving a solid fuel product to be ignited, an upper-end (3), a lower-end (4) and a grate (5), the grate (5) is placed across the hollow element (2) in the lower-end (4) of the chimney starter (1), wherein the lower-end (4) of chimney starter (1) rests on a chimney starter base (6) and the chimney starter base (6) comprising a gas burner (7) and one or more means (9) for increasing the air flow through the hollow element (2).

A chimney starter (1) including a hollow element (2), for receiving a solid fuel product to be ignited, an upper-end (3), a lower-end (4) and a grate (5), the grate (5) is placed across the hollow element (2) in the lower-end (4) of the chimney starter (1), wherein the lower-end (4) of chimney starter (1) rests on a chimney starter base (6) and the chimney starter base (6) comprising a gas burner (7) and one or more means (9) for increasing the air flow through the hollow element (2).

An ignition system includes a pulverized fuel pipe receiving a mixture of pulverized fuel and primary air for injection into a combustion chamber for combustion, and an igniter received within the pulverized fuel pipe for igniting the mixture. The igniter is axially movable within the pulverized fuel pipe.

An ignition system includes a pulverized fuel pipe receiving a mixture of pulverized fuel and primary air for injection into a combustion chamber for combustion, and an igniter received within the pulverized fuel pipe for igniting the mixture. The igniter is axially movable within the pulverized fuel pipe.

Techniques for controlling a solid fuel combustion appliance, e.g., a wood burning stove, are disclosed. A control system measures an exhaust gas temperature of airflow through an outlet of the solid fuel combustion appliance. The control system determines a derivative of the exhaust gas temperature with respect to time. The derivative of the exhaust gas temperature with respect to time is compared to a predetermined threshold. The control system modulates the inlet damper in response to determining that the derivative of the exhaust gas temperature with respect to time reaches the predetermined threshold.