Quality, Honesty & Safety

   Quality Heating Services Ltd

   Company Registration Number: 3014826 

All About Gas Boilers

Gas Boilers QHS

This is part of a series of How-to-Guides put together by QHS to help the residents we serve carry out basic checks of their heating systems.

These checks may help you to get the system working again without the need for an engineer to attend.

In the second part of this series, we will talk about your boiler and how to make sure that it is set up correctly.

  • A boiler uses gas flames to heat water. This hot water is then sent through pipes in your walls and floor to;

    Your radiators to fill them up with hot water to make them warm to heat your house


    Your kitchen and bathroom taps for you to wash with

    Gas for the boiler is sent from a main supply outside of your house. If the gas supply stops, your boiler will not work.

  • Here are some different types of gas boiler you can have;

    Combi boiler

    Combi boilers heat only the hot water that you use. They provide hot water on demand without having to heat it up in a tank first.

    You can have your combi boiler on a timer, so that it is only turned on during certain hours.

    This will make your energy bills cheaper, as you are only using your boiler when you need it.

    You can also have your comb boiler on constant, so it is always providing you with heat and hot water.

    Conventional boiler

    If you have a conventional boiler, you will also have a pump, a hot water cylinder and a cold water tank.

    The conventional boiler sends hot water to your radiators for heating and heats up a coil inside the hot water cylinder.

    Your hot water cylinder may have another coil inside, separate to the system and powered by electrics. This is called an immsersion. You can use this to provide hot water if your boiler is not working.

    If you have a conventional boiler, you need to keep in mind that the hot water in the cylinder must be heated up before you use it.

    Hot water will also run out if you use it all at once. This might happen if a lot of people in your house have showers or baths in a short space of time.

    Combi or conventional condensing boiler

    Both a combi boiler and a conventional boiler can have a condensing function. Condensing boilers are more efficient as they trap some of the heat that is normally sent outside in a pipe called the ‘flue’ and send it back to the boiler to be used again.

    All new boilers installed after 2005 must be condensing as they are more energy efficient, saving you money that you might have to spend on extra gas.

  • It is important for an engineer to attend and carry out a gas safety check on your boiler every year.

    During the visit, the engineer will make sure that the boiler is safe to use.

    The engineer will also make sure that you have a working carbon monoxide alarm.

    Failing to keep your gas safety check puts you and your family in danger. Faulty boilers can release carbon monoxide, a poisonous gas.

    Be aware of the symptoms of a carbon monoxide leak;

    These symptoms suggest a carbon monoxide leak

    If you suspect a carbon monoxide leak, please call Transco urgently on 0800 111 999.

    If a member of your family experiences breathlessness, collapse or loss of consciousness, call 999 for an ambulance.

    QHS are always happy to help answer any queries you have regarding your boiler. Call us on 01494 795000 or email us on customer-services@quality-heating.co.uk.


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