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A non-dilution air water heater blower for use in expelling exhaust gases from a water heater. The water heater blower includes a one piece blower housing defined by an outer wall having an upper section and a lower section. An inlet plate is positioned between the upper section and the lower sectio

A non-dilution air water heater blower for use in expelling exhaust gases from a water heater. The water heater blower includes a one piece blower housing defined by an outer wall having an upper section and a lower section. An inlet plate is positioned between the upper section and the lower section of the blower housing to define an upper chamber and a lower chamber. The lower chamber of the blower housing surrounds the exhaust flue from the water heater. A blower motor is attached to the outside surface of the blower housing. A rotating impeller coupled to the blower motor and positioned in the upper chamber draws exhaust gases from the water heater into the lower chamber through an inlet aperture formed in the inlet plate and out of an exhaust outlet formed in the upper chamber.

대표청구항 ▼

A non-dilution air water heater blower for use in expelling exhaust gases from a water heater. The water heater blower includes a one piece blower housing defined by an outer wall having an upper section and a lower section. An inlet plate is positioned between the upper section and the lower sectio

A non-dilution air water heater blower for use in expelling exhaust gases from a water heater. The water heater blower includes a one piece blower housing defined by an outer wall having an upper section and a lower section. An inlet plate is positioned between the upper section and the lower section of the blower housing to define an upper chamber and a lower chamber. The lower chamber of the blower housing surrounds the exhaust flue from the water heater. A blower motor is attached to the outside surface of the blower housing. A rotating impeller coupled to the blower motor and positioned in the upper chamber draws exhaust gases from the water heater into the lower chamber through an inlet aperture formed in the inlet plate and out of an exhaust outlet formed in the upper chamber. with said underwater exterior surface and the covering when attached thereto; an outer retention layer externally enclosing the protective covering; and means for mechanically effecting said attachment and removal of the covering said protective covering being formed from compartmental sections of the protective covering varying in thickness and material properties. 2. The device as defined in claim 1, wherein the watercraft is a water surface vessel. 3. A device for watercraft of different shapes and sizes to be protected against damage caused by underwater explosive effects, comprising: a protective covering shaped and dimensioned for attachment to and removal from an entire underwater exterior hull surface of the watercraft; a protective coating on said underwater exterior surface contacted by the covering when attached thereto; and means for mechanically effecting said attachment and removal of the covering, the watercraft being a submersible vessel. 4. The combination as defined in claim 2, wherein the water surface vessel has underwater portions thereof attached to the hull surface by the protective covering. 5. The combination as defined in claim 4, wherein said underwater portions attached to the hull surface by the protective covering includes a ballast keel.