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A vacuum can be used to remove any dust accumulation on the blower’s blades or inside the blower duct. Caution should be used not to damage the blower’s blades during cleaning. To reinstall the blower, slide the blower back into the retaining lip B and retighten screws A. A Adjustable Hopper The Winslow™ PI40 insert is shipped with the 55 pound hopper. With the larger hopper installed, that part of the insert that slides into the fireplace is 22-1/2” (572 mm) high. For installations in smaller f