Knapp Monarch Koldair Catalog 1-502 Single Speed Stationary Electric Fan, Circa 1947

A collection of images from a restored antique electric fan. Has a 2 pole motor with a heavy cast iron base, nickel plated steel cage and and aluminum blade. The aluminum blades are well balanced, spin quietly and push a lot of air for their size. From full speed to full stop takes at least 25 seconds which is nice as it indicates a well balanced set of blades with properly aligned, well oiled bearings. The effective range for this fan is 4-10 feet and is suitable for table top usage.

Balancing blades can be a little tricky with small fans and high speed motors. Altering the pitch of the blades will slow the motor down, but push more air and possibly alleviate harsh vibrations which could make the fan wobble.

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Valued in the range of $65 - $80.