Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,151 pages of information and 233,681 images on early companies, their products and the people who designed and built them.
1958 Miroslav Sigmund set up a new company, International Boilers and Radiators Ltd, to market the new range of Thermopak pumps, manufactured by his main company Sigmund Pumps, and to make slimline pressed steel radiators.
1961 Appointment to the company's board. Booker Brothers, McConnell and Co had started the company as an adjunct to Sigmund Pumps, to provide an outlet for their smaller accelerator pumps designed for central heating systems 
1962 Introduced Gas-Pak for gas fired central heating package deal on supply and installation.
1966 illustration of radiator production testing