Gas (Safety and Measurement) Regulations 2010

13 Additional rules for when gas appliances deemed to be unsafe

(1)

A gas appliance is deemed to be unsafe if—

(a)

the ignition is delayed beyond the design specification; or

(b)

the supply of gas to the appliance results in a flashback or an extinguishment of flame or some other flame abnormality; or

(c)

the appliance or flue is spilling products of combustion abnormally or outside the design specification, directly or indirectly into an enclosed space; or

(d)

the supply of gas to the appliance results in leakage or failure of a downstream fitting.

(2)

In this regulation, flame abnormality means a flame condition that results in appreciable yellow tipping and carbon deposition (not including that which occurs in appliances designed for luminous effect), lifting, floating, lighting back, objectionable odour, incomplete combustion, or noise.