This year, Gas Safety Week is taking place from 15-21 September.
Gas Safety Week is an annual safety week to raise awareness of gas safety and the importance of taking care of gas appliances.
It is co-ordinated by Gas Safe Register with support from the gas industry including retailers, manufacturers, consumer bodies and the public.
Every year thousands of people across the UK are diagnosed with carbon monoxide poisoning.
Gas Safe Register estimates that there are around 7,500 illegal gas fitters operating across the UK and up to 250,000 illegal gas jobs may be carried out each year (Gas Safe Register Research 2009).
According to results from Gas Safety Week Research 2011, 10% of Britons own gas appliances which have never been checked.