GB1504138A - Gas fire - Google Patents

Abstract

1504138 Imitation solid-fuel gas fires CHR (DEVELOPMENT) Ltd 6 Oct 1975 [12 Sept 1974] 39735/74 Heading F4W A gas fire comprises a plenum chamber 1 which extends from side to side of the fire, and is supplied in use with a gas/air mixture through a Venturi-tube 2, flame trap material 7 which extends across an upwards-presented mouth 6 of the plenum chamber, and radiant material 18 supported above the material 7, the gas/air mixture burning in use at the material 7. The radiant material 18 is in the form of bodies simulating coke, wood or coal embers randomly arranged in the spaces between a block 9 which covers a central area of the material 7 and peripheral walls 10, 11, 12, or alternatively is in the form of a one-piece ceramic unit shaped to simulate embers and having apertures for the gas/air mixture. Further coal or wood simulating members 19 made of ceramic material are located above and fixed to the block 9, and further bodies 18 are placed between the members 19. The walls 10, 11, 12 include secondary air inlet openings 13. A baffle plate 8 within the plenum chamber 1 extends from the rear thereof but terminates short of the front and sides thereof. Brackets 14 support a fire-brick at the rear of the fire. The plenum chamber mouth 6 may define a rectangle or trapezium and may be horizontal or obliquely inclined thereto. The bodies 18 are made of pumice or ceramic fibres, and may be of various sizes and/or densities whereby in use to glow to different degrees. The flame trap material 7 is stainless steel twillweave gauze or finely perforated stainless steel sheet. The fire includes a pilot-light jet (16, Fig. 2) and a flame-failure device. Metal heat reflectors may extend along the sides and rear of the fire. A canopy with an outlet for connection to a chimney may be provided.