Geminox, world leaders in heating technology, are pleased to launch the unique THl DUO gas fired condensing boiler. Built around the success of our THl range of boilers and EBS hot water tanks.

The DUO is a combined appliance using the tried and tested cutting edge technology of our THl boiler and the exceptional hot water performance of our EBS hot water tanks. The DUO has a 120-litre hot water tank and we are confident to state that our EBS tanks outperform all other hot water tanks on the market. The DUO boiler is available in either single heating circuit or with two heating circuits using the same technology as our unique DC boiler. On the DUO DC the two heating circuits work at the same time but provide different outputs at different temperatures. The two heating circuits are ideal for a combination of underfloor heating and radiators or underfloor heating and towel rails. The two circuits can also accommodate any other combination of heating circuits.

As with all our boilers, the DUO has achieved the Blue Angel Standard and has a European class 5 NOx rating and is SEDBUK A approved.