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.
GAS SAFE REGISTER - The official industry stamp for gas safety.
SENTINEL - Cleaning and corrosion inhibiting products for heating systems.
KANE INTERNATIONAL LTD - Design and manufacture of combustion testing equipment.