Green Economizers have been at the forefront of Waste Heat Recovery Technology since Edward Green first patented the Fuel Economizer in 1845. Since then, Green Economizers have grown into a company offering expertise in design and manufacture of various heat transfer products/solutions for industry, power generation, marine and petro-chemical industries amongst others. Green Economizers are accredited by Lloyds Register (LRQA) to ISO 9001 requirements. Green Economizers are holders of the ASME Section I 'S' stamp and ASME Section VIII 'U' stamp. The company also promotes continual research and development to maintain their position as World Leaders in the design, manufacture, and application of Extended Surface Finned tubing and Economizers. Green Economizers are located centrally within the UK in the city of Wakefield. The large facility covering over 1,000,000 ft2 with extensive shop facilities are ideal for manufacture of large units.