Convection of Air Apparatus.**CLEARANCE**

Item No. 612-1240
Air heated by a candle moves up one chimney while cooler air moves down another to replace the lost air. These currents can be seen against a dark backdrop. Includes: metal box with glass front; two plastic chimneys, candle, and instructions. You need a smoke source.
Price
$44.18
excl. tax
This product cannot be ordered at the moment.
Description

Air heated by a candle moves up one chimney while cooler air moves down another to replace the lost air. These currents can be seen against a dark backdrop. Includes: metal box with glass front; two plastic chimneys, candle, and instructions. You need a smoke source.

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