Oil/gas boilers for medium and high output

Gas condensingboilersVitocrossal 300187 to 635 kWThe Vitocrossal 300, type CT3B is afloorstanding gas condensing boiler with Inox-Crossal heat exchanger and MatriX radiantburner (up to 314 kW). Vitocrossal 300 gascondensing boilers are also available factoryfitted with ELCO or Weishaupt pressure-jet gasburners.Advanced condensing technologyThe design of the Inox-Crossal heat exchangerenables the Vitocrossal 300 to produce highoutput ratings, whilst retaining its modestdimensions and low weight. In addition, theVitocrossal 300 can be dismantled into twosections, making handling easier.The highly effective heat transfer and the highcondensation rate enable standard seasonalefficiencies [to DIN] up to 98 % (H s) [gross cv]/ 109 % (H i) [net cv] to be achieved. These highlevels of standard seasonal efficiency [to DIN]are the result of the countercurrent principlerelated to hot gas and boiler water, along withthe intensive turbulence of the hot gases asthey pass through the heat exchanger.The second return connector of theVitocrossal 300 enables a hydraulic connectionthat is highly beneficial to the utilisation ofcondensing technology.Convenient Vitotronic control unitContractors and users benefit equally fromthe easy-to-use Vitotronic control unit, asthe structure of its menu is logical and easyto understand and the unit is backlit, rich incontrast and easy to read. If in doubt, a helpfunction informs users of the next steps toperform. The graphic user interface can alsodisplay heating curves and solar yield.51234Vitocrossal 3001 Stainless steel combustion chamber2 MatriX radiant burner (up to 314 kW)3 Inox-Crossal heat exchanger4 Highly effective thermal insulation5 Vitotronic control unit