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Bosch offers two new models of condensing gas-fired tankless water heaters for domestic hot water on-demand applications. Greentherm C 1050 ES and C 950 ES are Energy Star-rated models featuring condensing technology with an improved energy factor up to 0.94. They also come with an automated and fully modulating bypass for temperature stability. The wall-mounted units offer multiple venting options and up to four units cascaded and vented together through a sidewall or roof with the new Bosch Polypropylene Common Venting System.
