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  • Carbon monoxide

Carbon monoxide

Unsafe gas and solid fuel appliances can produce a highly poisonous gas called carbon monoxide (CO). You can't see, smell or taste carbon monoxide but it can be deadly – it’s a silent killer.

Carbon Monoxide (CO) alarm activates?

If your Carbon Monoxide (CO) alarm activates, contact the gas emergency helpline:

  • telephone: 0800 111 999

Immediate danger from a gas appliance?

If you feel there is an immediate danger from a gas appliance:

  • telephone 0800 111 999.

Central heating fault?

If you are a council tenant and there is a fault with your central heating, do not use it and let us know:

  • telephone: 01623 457999

What are the risks within your home

Any carbon-producing fuel can produce carbon monoxide which can gather if there is not enough ventilation.

Fuels include gas, coal, wood, coke, biofuel, oil, petrol and diesel. They may be used in your central heating but there is also a risk from fires, cookers, stoves, room heaters, water heaters and barbecues.

It is vital you keep appliances serviced and make sure your home is ventilated well to reduce the risk.

Symptoms of carbon monoxide poisoning

Carbon monoxide is known as the silent killer. There are 6 main symptoms to look out for:

  1. Headaches
  2. Dizziness
  3. Nausea
  4. Breathlessness
  5. Collapse
  6. Loss of consciousness.

You may notice your symptoms appear at home but disappear when you leave. You may also notice other people or pets in your home have similar symptoms.

Other warning signs

Apart from the symptoms you, others, or your pets may experience in your home there are some other signs of a carbon monoxide leak:

  • lazy yellow or orange flame on your gas hob rather than a crisp blue
  • dark staining on or around appliances
  • pilot lights frequently blowing out
  • more condensation inside windows.

What to do if you suspect you or someone else has carbon monoxide poisoning

Do the following:

  • get fresh air immediately
  • open all doors and windows to ventilate the area
  • switch off any appliances and leave the house
  • get medical attention and make sure you tell them you think you have carbon monoxide (CO) poisoning so they can give you the right tests and treatment.

If there is an immediate danger from a gas appliance:

  • telephone 0800 111 999

What can you do to stay safe?

You should contact us to have a CO alarm installed free of charge, if you live in one of our properties.

Testing

We will come to your home and carry out regular property checks. We'll make sure all fuel burning appliances are checked and safe for use. You can use the Tenant Portal to see when your next property check is due.

Tenant Portal

You should test your carbon monoxide alarm every month to make sure it is working.

Faulty CO alarm

If you do find that your CO alarm is faulty, you should contact us:

  • telephone: 01623 457999

Other ways of staying safe

You can also do some things to help stay safe from carbon monoxide leaks and poisoning:

  • never cover or block central heating appliances, air vents, grills, air bricks and outside flues as they need a fresh supply of air to work safely
  • ensure appliances you're responsible for such as cookers are serviced regularly by competent and qualified engineers
  • do not use barbecues generators, or portable fuel burning appliances inside your home or in confined spaces
  • do not sleep in the same room as a back boiler unit or solid fuel boiler or fire
  • if you suspect a fault with your central heating don't use it. Contact us by telephone:01623 457999
  • if you think there is immediate danger from a gas appliance, telephone 0800 111 999
  • Do not ignore a sounding Carbon Monoxide Alarm contact the National Gas Transport by telephone: 0800 111 999
  • A Carbon Monoxide alarm is useful back-up precaution but must not be regarded as a substitute for proper installation and maintenance of gas equipment by a Gas Safe registered engineer.

Contact details

  • Housing
  • Online contact form
  • 01623 450000 and ask for 'Tenancy' or the officer you wish to speak to
  • (only for non-urgent repairs)
    Ashfield District Council
    Council Offices
    Urban Road
    Kirkby in Ashfield
    Nottinghamshire
    NG17 8DA

Downloads

Some files may not be accessible to everyone. You can request the file in a different format from the contact on this page.

  • What do I do if I smell gas or the CO alarm sounds? (PDF - 399Kb) Uploaded 05 September 2025
  • A tenant's guide to smoke and carbon monoxide detectors (PDF - 190Kb) Uploaded 05 September 2025

Related links

  • Tenant Portal
  • How to turn off gas supply to your home (video) (External link)
  • Gas Safe Register (External link)
  • HETAS - solid and biofuel (External link)
  • OFTEC - oil (External link)

Page last updated 11 September 2025

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