01243 841464

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Factsheets - Gas ratings Whilst all advice given is correct to the best of our knowledge, we cannot be held responsible for any problems should you choose to take our advice. Select from the following:

Plumbing Glossary

Emergency plumbing

How to disconnect a washing machine

Mould in bathrooms and showers

Taps and shower valves

Earth bonding

Preparing for winter

Power showering in flats

Buying a bathroom suite

Advice when doing building work

Water pressure

Pressure and stored hot water

Flow and pressure

Water softeners

Boiler breakdowns

Gas Rating

Asbestos Awareness

Gas Rating problems with existing pipework

Please note that only Corgi registered people can work on gas appliances. All gas appliances need to be registered with Corgi when they are changed or installed. This includes cookers, gas hobs and boilers.

There are strict rules about the amount of gas required for every appliance. If there is not enough gas available for the requirements of the appliance then the appliance could be dangerous.

It is usually possible to do a rough calculation to establish whether there will be enough gas for the appliances that will be connected. However, this can never be definitive especially when pipes are concealed etc.

Unfortunately it is impossible to test that the correct amount gas needed for the appliance to burn correctly without having the appliance connected.

If when the final commissioning checks are carried out and there is not enough gas, then the appliance fails. It will then require that the pipework be adapted or re-run so that enough gas is delivered to all the appliances working off that meter.

Re-running the gas piping to an existing appliance can lead to considerable disruption and cost.

Registered Office The Vineyard Sidlesham Common Chichester PO20 7QA 01243 841464