Technical Information All our central heating radiators have been fully tested according to European Standard EN 442, so you can be confident that heat outputs shown on this website are accurate and reliable. Outputs on the webside are listed in watts and their imperial equivalent British Thermal Units (BTUs) and are shown at operating temperatures of 90/70/20 ( ΔT=60K). Outputs can be found on our technical data and fitting sheets.                         How our Radiators differ from others on the Market. All our products are made from high quality stainless steel – thickness 1,5mm  Other companies use 1mm or sometimes even less than 0,5mm profiles. When connecting our radiator structures we use the expensive method of TIG welding in Argon Gas.  This gives strong, excellent quality and more resistant joints. (2 metal parts are melted together creating one piece) -Many companies use the brazing method (soldering) which is more economical but joints are much less resistant (2 metal parts not melted together)     Art-Radiators aim to create exceptional quality products using high quality materials and workmanship. copyright @ art radiators