Natural gas 3 Single boiler installation 3 Cascade installation 3 Features Benefits 3 Mounting frames 3 Support legs 3 Main gas pipe 3 Flow and return headers CO2 content at full load, natural gas G20 9.4% 9.4% Condensate water rate natural gas G20, 50/30ºC 6.9l/h 10.8l/h
See diagrams 3.4 & 3.5 for gas appliances and diagram 4.2 for oil appliances. Each boiler must have a minimum efficiency of 86% for gas and 85% for oil. The replacement of a gas boiler will probably have to be a condensing boiler unless there is sufficient reason why one cannot be installed.
Gas piping clearance distance to buried water, sewer, electric lines. 3 feet. Underground natural gas distribution service and mains (metallic or plastic) shall have a clearance of 3 feet when running parallel or 12 inch vertical direction when crossing from any underground facility (water, sewer, electric, etc.).
Building regulations | Boilers and heating | Planning Portal
Lennox, Gas-Fired Combination Water Boiler, 95% AFUE
The Gas Safety (Installation and Use) (Amendment) Regulations 2018 came into force on 6 April 2018. which are primarily used to supply compressed natural gas (CNG) to vehicles and which incorporate at least one gas compressor with an electric motor input power rating exceeding 5 kilowatts, bringing them in line with other industrial
Ensure that the gas supply pipe and meter are large enough for this appliance and any others that may be run off the same meter. Reference should be made to B56891 Boiler Mounting Surface The boiler must be mounted on a flat wall, which may be of combustible material and must be sufficiently robust to take the weight of the boiler.
Gas Meter & Gas Pipe Clearance Distance Codes & Specifications
There should be a minimum height, 500 mm (20), of open vent above the cistern water level. The vertical distance between the highest point of the system and the