Viessmann - Viessmann's innovative Inox-Radial stainless steel heat exchanger, specified across our condensing boiler range, is a high performance spiral-wound heat exchanger that provides excellent heat transfer and ensures standard efficiencies of
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B1KA111 - Viessmann B1KA111 - B1KA 125,000 BTU Vitodens 100-W Gas-Fired Wall-Mounted Condensing Combi Boiler
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