Brochure - Unical Lattner Condensing Hot Water Boilers

Money saving ...Operating efficiency levelsupto and over 108% !The condensing technology has the primaryscope of drastically reducing latent heat(contained in water vapour), which is lostthrough the flue system, thereby exploitingto the utmost the energy containedin the gas burned and giving the condensingboiler an exceptionally high levelof operating efficiency, impossible to reachwith conventional boilers.The ALKON’s 50 heat exchanger/condenserhas been designed so that the system’sreturning cold water passes throughits terminal part: the contact of the fluegases with this cold surface causestheir transition from the vapour phaseto the liquid phase (condensate),with the subsequent release of heat tothe C.H. system water.This process therefore enables the boilerto recover nearly 1 kW per m 3 of gas burned,which normally, with traditional combustion,would be lost to the environmentwith the flue gasses.Combustion/condensation phenomenonALKONCondensing boilerCONVENTIONALBOILERUSEABLECONDENSING HEAT+12%- 2 % - 1 %100% 112% 110% 109%UNUSEABLECONDENSING HEATFlue sidelossesFlue sidelossesRadiatonlossRadiatonloss- 7 % - 1 %100% 100% 93% 92%FUEL SAVINGThe energy efficiency indicated is the “Net calorific value”Thus the ALKON 50's and ALKON 70'suseful efficiency reaches 109%!Seasonal efficiency, which is stronglyinfluenced by the heating load factor,which is to say, by the variations of usageaccording to the climatic conditionsand the type of heating system, alwaysmaintains itself at very high levels, placingthis boiler at the top of today’s technology.