HETAS is the official government recognised body to approve solid fuel domestic heating appliances, fuels and services. These products include, stoves, boilers, cookers, open fires and room-heaters. HETAS collaborates with the National Association of Chimney Sweeps (NACS) in supervising a solid fuel orientated course for chimney sweeps, which results in successful candidates being "HETAS Approved". In association with the Solid Fuel Association (SFA), HETAS operates a registration scheme for heating engineers with special skills in the installation and maintenance of solid fuel heating systems.

As of the 1st April 2009 any gas work performed in your home, or workplace must be undertaken by an engineer registered with Gas Safe, the national watchdog for gas safety in the UK. Gas Safe exists to protect you, your family, and your property from dangerous gas work. Incorrectly fitted, badly repaired or poorly maintained gas appliances are a major cause of lethal carbon monoxide (CO) poisoning, and can lead to gas leaks and explosions. There are 120,000 Gas Safe registered engineers legally allowed to perform work on gas installations and appliances in Great Britain and the Isle of Man.

OFTEC is the Oil Firing Technical Association for the petroleum industry, the installation of an oil fired appliance should be carried out by an OFTEC registered engineer. OFTEC was launched in April 1991 to construct a framework within which oil firing in the United Kingdom and Republic Of Ireland could operate with a greater degree of technical expertise and efficiency. All OFTEC installers are able to certify their own work so there is no need to notify local authority building control when installing an oil fired appliance.

NACS is the National Association of Chimney Sweeps and are specialists in providing professional chimney sweeping, along with technical expertise for the safe operation and maintenance of chimney appliances and the installation of flue systems, stainless steel flexible liners and flue terminations. Before you purchase an appliance that will be using an existing chimney, or flue, we recommend you get a registered chimney sweep to inspect it. This will ensure there are no leaks in the flue, the draught is good and the flue is structurally sound.

UK IAM are approved HETAS and Gas Safe engineers and are qualified to install your new multi-fuel stove, wood-burning stove, or gas stove. UK IAM, in association with the Stores Direct Group, will initially be performing installations within a selected area of the North of England as of February 2011, with plans to extend this installation service throughout the entire UK during 2011. For further details on the UK IAM installation service click here.