Lighting system for enclosed chimney uses a resistance, whose current supply is controlled by a clock and regulated by a transformer

摘要

A box (5) houses a clock (2) and a current transformer (3). The box has an external connector linked to a plug (1). The clock controls the passage of the current from the current source to the transformer. The current is then supplied to a resistance (4). When the resistance is hot enough, it sets fire to the matches that are in contact with it. The wood is then set on fire by the matches.