The WB22 is a fully portable 22kW boiler that can be used for drying concrete flooring, testing underfloor heating and providing hot water and central heating. The fully programmable digital control allows output to be tailored to suit the application and a number of electrical sockets allow it to be used on a variety of electrical supplies. Comes complete with pump, trolley and safety features including expansion tank, high pressure cut out and over temperature cutout.