Blower and method of conveying fluids

A blower for a water heater having a flue defining a flue axis, the blower comprising:

• a housing at least partially defining a first chamber and a second chamber and having a first inlet opening into the first chamber, a second inlet opening into the first chamber for receiving ambient air, and an outlet communicating between the second chamber and atmosphere, the first inlet being alignable with the flue;
• an impeller positioned in the second chamber, the impeller being operable to draw exhaust from the flue into the first chamber through the first inlet and being operable to draw the exhaust into the second chamber before directing the exhaust through the outlet;
• and
• a ramp extending through the first chamber adjacent to the second inlet for directing ambient air from the second inlet toward the first inlet.

A blower for a water heater having a flue defining a flue axis, the blower comprising:

• a housing at least partially defining a first chamber and a second chamber and having an inlet opening into the first chamber and an outlet communicating between the second chamber and atmosphere, the inlet being alignable with the flue;
• a ramp extending through the second chamber and having a first surface oriented at an acute angle with respect to the flue axis, and a second surface opposite the first ram surface and oriented at an obtuse angle with respect to the axis;
• and
• an impeller positioned in the second chamber and being operable to draw exhaust from the flue into the first chamber through the inlet and being operable to direct the exhaust through the second chamber and through the outlet.