Wolf. CGW-2L. Gas condensing unit consists of condensing gas wall-mounted boiler with stainless steel heat exchanger and stainless steel stratification boiler in modular construction (wall model). Integrated comfortable hot water production, equivalent to a traditional boiler of respectively 100, 120 and 140 L.. Hot water turbo with distribution system in stainless steel for hot and cold water that provides a calm and radial water distribution as well as excellent hot water output (European Patent). High cost savings through efficient hot water production and innovative insulation technology with integrated ring gap system (patented). Controlled boiler charging for highest energy efficiency through effective condensation utilisation (European Patent).