Unlike electricity, where a small number of meters will accommodate most users’ power consumption needs, there are many different makes, models, and sizes of gas meter specifically designed for the maximum usage a customer requires.
To establish the size of meter you require depends on two main factors:
Most sites in the UK have a low or medium pressure. If a new gas connection is being laid soon or has recently been installed, the quote paperwork from the works provider should confirm the mains pressure.
If you are unsure about this or the pipe was laid some time ago, 1Gas can arrange a free check, also known as a GT1.
To calculate what size gas meter you require will depend on two things. You may however need to find a Gas Safe engineer in your area who can help with this.
A typical household may require 30 kilowatts (kW) as a maximum peak demand. A typical condensing boiler for hot water and central heating may use 20 kW, a gas fire may use 5 kW, and a gas hob (and/or oven) may use another 5 kW.
The size of house, number of bedrooms, and number of radiators vary from property to property, so it’s important to get it right.
A commercial, or non-domestic, building could use much more gas. A small office or shop may have a similar gas load requirement to a house, if just heating and hot water are used.
A fast food outlet or takeaway could use anywhere between 70 kW and 150 kW, and this is usually similar for a restaurant. Schools and nursing homes could use up to 1000 kilowatts at any given time or more. A factory may use many thousands of kilowatts extra. No two sites are the same.
In summary, there isn’t one size of meter that fits all, so it’s important to check with the help of a Gas Safe engineer that your gas pipe connection and meter can pass through the volume of gas you require. If a mistake is made, it could be costly and time consuming to put right.