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US5240411A
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Atmospheric gas burner assembly
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US5179914A
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Forced draft water heater with an improved tank structure and a method for making water heaters
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US5220638A
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Water heater with an improved thermostat mounting and a method of making such water heaters
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US5115798A
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Condensate trap
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US5085579A
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Powered chamber combustion system and burner therefor
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US5022352A
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Burner for forced draft controlled mixture heating system using a closed combustion chamber
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US4924816A
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Water heater with flame spill-out prevention arrangement
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US4925093A
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Forced draft direct vent system for a water heater
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US4918848A
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Display stand for use with water heaters
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US4940042A
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System and apparatus for venting water heater
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US4766883A
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Forced draft controlled mixture heating system using a closed combustion chamber
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GB8703116D0
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Forced draft controlled mixture heating system using a closed combustion chamber
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US4660541A
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Water heater with submerged combustion chamber
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CA1252678A
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Water heater with submerged combustion chamber
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US4662314A
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Magnetic water conditioning device
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US4397296A
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Water heater with submerged combustion chamber
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US4328791A
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Gas supplemented solar collector storage means
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US4270894A
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Combination flue and vent damper
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US4243194A
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Hot water tank supporting legs
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CA1073643A
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Heat exchanger for solar energy
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