Calor, a market leader for liquefied petroleum gas, has launched a web site for commercial gas users. The company has invested over £30 000 in the site, which intends to be a one-stop shop for gas users. It offers replacement gas parts and commercial gas tools. There is an extensive range of products, including regulators, hoses, changeover valves, torches, industrial lighting and heating products, catering boilers/water heaters, thermocouples and accessories.