Homemade AWG

I am interested in building an Atmospheric Water Generator, a machine that creates water from nearby air, kind of the what happens when window air conditioning units drip water, but at a much higher scale.

My goal is to create a unit capable of producing 1-2 gallons per day, for use here in southern California.

I've read https://www.instructables.com/id/DIY-Atmospheric-Water-Generator/, a great write-up.

Mostly, it requires a dehumidifier, with a stainless steel element, a water filter and tubing.

I am wondering if I use a non-stainless steel dehumidifier, about 1/4 the price, and a really good water purifier, if that'll do the job. Also wondering if the dehumidifier will get mineral or other kind of deposits and need to be cleaned periodically.

Anyone have any insights on this?


Thanks