The Baxi Luna 3 Comfort is a modulating wall-hung gas boiler with an efficiency rating of 85.5% AFUE. One of the two models of the Luna 3 Comfort, the 310 fi, is a combination heating and DHW boiler which prioritizes to domestic hot water and does not mix boiler water with domestic hot water. The nickel-chrome, stainless steel design of the premix burner and primary heat exchanger provide resistance to corrosion and low heat inertia. A direct vent and sealed combustion chamber provide quiet operation, and the Luna 3 Comfort is approved for closet installation.
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