The patented Duopass system, found only in the Solenne PCI series boiler, delivers unsurpassed domestic hot water in an efficient, compact package.
When there is a demand for hot water the system works by immediatly re-heating the domestic hot water in the micro-storage tank and at the same time the PCI will pre-heat the incoming cold water, through the copper brazed plate heat exchanger, before it enters the intergrated micro-storage water heater. This process gives the Pensotti PCI series a dramatically increased recovery rate over any standard combi-boiler.