Part of the Stelrad Radiator Group Stelrad has been part of the Stelrad Radiator Group (SRG) since 2014. With no fewer than 6 ... million radiators sold and a market share of around 20%, SRG is the only European manufacturer to focus 100% on the development, production and sale of radiators. Being part of this European group gives us the foundations and strength we need to consolidate and further strengthen our European position. read more