11. Specification for installation of decorative log and other fuel effect appliances (1st, 2nd and 3rd family gases). (30th June 1986) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
12. Specification for metal flue pipes, fittings, terminals and accessories for gas-fired appliances with a rated input not exceeeding 60 kW. (30th June 1989) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (25 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗