SEDBUK - Seasonal Efficiency of Domestic Boilers in the UK; a Boiler Efficiency Database.

ENERGY SAVING TRUST - Information about how to achieve sustainable and efficient use of energy, and cutting carbon dioxide emissions.

ODPM - Building Regulations Approved Document L1; Conservation of fuel and power in dwellings (PDF Format).

OFTEC - Oil Firing Technical Association for the Petroleum Industry. Promoting excellence in oil heating and cooking. Have a look at the Publications section.

IDHE - Institute of Domestic Heating & Environmental Engineers.

CORGI - CORGI is the National Watchdog for Gas Safety in the United Kingdom. Leading standards in safety.

SENTINEL - Cleaning and corrosion inhibiting products for heating systems.

KANE INTERNATIONAL LTD - Design and manufacture of combustion testing equipment.