One in 43 people in Oxford have unsafe gas appliances in their home, while there are 3,570 faulty appliances in the city alone, according boiler repair specialist Boiler Guide.
The company analysed data from the Gas Safety Register, which it cross referenced with the population size in each area.
Other areas at risk are Reading (one in 44 people), Dundee (one in 47) and Cardiff (one in 48).
David Holmes, founder of Boiler Guide said: “With more and more residents switching on their gas boilers as we head towards winter, it’s imperative that homeowners aren’t unwillingly playing host to potentially life-threatening risks in their properties through faulty gas appliances.
“Putting off getting an appliance fixed or serviced can have devastating consequences.
“Faulty gas appliances pose huge life threatening risks with gas leaks, carbon monoxide poisoning, and fire and explosions a real threat as natural gas is highly combustible. Once gas leaks from a faulty appliance, it spreads quickly and increases the risk of it accidentally igniting causing a fire or explosion.”
Residents in Cambridge were found to be the most on top of their gas safety checks, with just one in 213 people at fault for having an unsafe appliance in their home (603 appliances in total).
Residents in Newcastle (one in 160), Coventry (one in 132) and Sunderland also performed well in the rankings (one in 130).
