I purchased a 12V squirrel cage blower ($16 delivered, 26 CFM), 12V 2A power supply (Ebay $4.99) and built a Radio Shack 12V voltage regulator from an LM317 adjustable regulator to slow down the fan that worked too well (faucets dripping with condensation) and was a bit noisy (http://www.rigacci.org/docs/biblio/online/voltreg/fan-regulator/tutorial-full.html). I carefully soldered (not too much heat) the LM317 to the back of the potentiometer to act as a built in heatsink.
I used 1/8” foil backed adhesive insulation (Frost King from Lowes) to line the inside of the tower with two layers to keep it from sweating. Only a very small area around the back of the faucets is exposed. I should measure the voltage and recommend just purchasing the low voltage power supply to save the $10 regulator expense and wasted electricity (heat from the linear voltage regulator).
Works perfectly and it’s quite. Maybe a ¼” of head or less on the first and every pour.
I used 1/8” foil backed adhesive insulation (Frost King from Lowes) to line the inside of the tower with two layers to keep it from sweating. Only a very small area around the back of the faucets is exposed. I should measure the voltage and recommend just purchasing the low voltage power supply to save the $10 regulator expense and wasted electricity (heat from the linear voltage regulator).
Works perfectly and it’s quite. Maybe a ¼” of head or less on the first and every pour.
