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Bosch’s Greentherm C 1050 ES and C 950 ES condensing gas-fired tankless water heaters are both Energy Star-rated models that feature condensing technology for up to 10% improved energy efficiency over noncondensing models, with an EF up to 0.94. They are equipped with an automated and fully modulating bypass for unsurpassed temperature stability. For commercial applications, the Bosch Therm C 1210 ESC tankless water heater provides up to 98% thermal efficiency. The gas-fired condensing Therm C 1210 features a space-saving design, affording easy servicing access and can be cascaded using up to 24 units.
