Invention Grant
US08807092B2 Gas fired modulating water heating appliance with dual combustion air premix blowers 有权
燃气调节水加热设备与双燃烧空气预混吹风机

Gas fired modulating water heating appliance with dual combustion air premix blowers
Abstract:
A water heating apparatus includes a burner having first and second zones. First and second blowers provide premixed fuel and air to the first and second zones, respectively. An automated control system controls the two blowers.
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