Navien gas engineer

Gas Safety Advice

Badly fitted and poorly serviced gas appliances can cause gas leaks, fires, explosions, and carbon monoxide (CO) poisoning. CO is a highly poisonous gas that can kill quickly and without warning, as you cannot see it, taste it, or smell it.

By taking care of gas appliances properly and spotting the warning signs of an unsafe appliance, homeowners can take care of their properties and loved ones.

Follow the simple steps below to help keep you and your family safe.

Check for warning signs that could indicate gas appliances are not working correctly

Signs may include lazy yellow /orange flames instead of crisp blue ones, black marks on or around the appliance, a pilot light that keeps going out and too much condensation in the room.

Make sure you know the six main symptoms of carbon monoxide poisoning

Headaches, dizziness, breathlessness, nausea, collapse, and loss of consciousness. Download the Carbon Monoxide safety sheet below:

Install an audible carbon monoxide alarm

Alarms should be marked EN50291 and display the British Standards Kitemark.

Never attempt DIY on gas appliances or block vents

Either of these actions could cause an appliance to become unsafe. If you are worried about an appliance, contact a Gas Safe registered engineer directly. To find or check your nearest Gas Safe registered business, visit:

Have an annual gas safety check

Gas appliances – including boilers – should be safety checked once a year and serviced regularly by a Gas Safe registered engineer. Tenants should be aware that it’s their landlord’s responsibility to arrange this. A free email and/or text reminder can be set up at:

Check your engineer is Gas Safe registered and qualified for the type of work they need doing

This information can be found on the Gas Safe Register website and the back of the Gas Safe ID card. When the engineer visits your home, make sure you ask to see their card.

For more gas safety advice and to find/or check an engineer, visit the Gas Safe Register website at Alternatively, call the free helpline on 0800 408 5500.

Navien is proud to support Gas Safety Week – an annual event dedicated to raising awareness of gas safety and the importance of taking care of your gas appliances. It is coordinated by Gas Safe Register, the official list of gas engineers who are legally allowed to work on gas.

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