Gas Safety Gas Safety Gas appliances need air to allow them to burn safely and they also need a flue or chimney to take away the waste gases that are produced. If the chimney or flue is blocked, or the appliance does not have adequate ventilation, carbon monoxide may be produced which can be fatal.
Every year there are deaths caused by carbon monoxide.
Danger signs include soot or discolouring on or around a gas fire, a yellow flame in your fire or water heater and a strange smell when the appliance is on. Symptoms of carbon monoxide poisoning are tiredness, headaches, and chest and stomach pains. If you are at all worried about the safety of an appliance, seek help as explained below. Ensure that any air vents are working and unblocked. Turn off the water heater before you get into the bath.