The Baxi Luna Duo-Tec is a modulating, condensing wall-hung gas boiler with an efficiency rating of 90.0% AFUE. It features a stainless steel pre-mixing burner and heat exchanger, and a stainless steel enhanced secondary heat exchanger on the combi model. A 7:1 modulation ratio provides increased efficiency and fuel savings. The backlit digital controller maintains optimal combustion and displays error codes, and removable front and side panels make the unit easier to service. The Luna Duo-Tec has the ability to accept and increase heating of preheated solar water, and is approved for closet installation.
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