When I bought this 1/2HP ActiveAqua chiller I was disappointed with its performance. After Hydrofarm declined to respond to my emails looking for assistance I felt compelled to share my experience with this product and with Hydrofarm's technical support.
I spent the last two weeks purchasing additional fans, pumps, HAVC ducting, and insulation in order to get this product working to no avail. I purposely ordered a chiller that was overrated for the job and it still can't get the reservoir temperatures down. The chiller's power ratings are deceivingly optimistic, as the 1/2HP chiller struggled to bring my 200-liter reservoir a mere 15 degrees from ambient despite it being rated for "200-1200 liters". I emailed Hydrofarm about my problems with this product and heard nothing back from them.
So, my advice is to take a lesson from my mistake: Buy a chiller from a company that actually stands behind a quality product and steer clear of this brand.
Rating: [1 of 5 Stars!]