I have a metal insulated shed 28 wide x 48 long x 14 ft tall . 18.800 cubic square feet . The moiswell V320 works like a champ. It does an amazing job. I highly recommend moiswell products.
I usually don't like to review items until I've owned them for a year or so, but wanted to relay how well this thing works! I just bought a property in Georgia with a huge basement shop and, being from the mountain states, wasn't fully aware of high humidity's dark side and got a quick lesson in what it does to personal items with mold appearing on household things that were stored in the 60x60 mostly underground space (16' ICF walls w/earth backfill on 3 sides).
After some research the V320 looked to be a solid unit. The RH in the shop was near 80% and this thing pulled out 28 gallons of water in the first 20 hours! After a little over a day of running it was able to get the space down to 55% RH and maintains it easily. It has a solid build quality and very intuitive operation.
I noticed it was short cycling...it would run for about 3 minutes, then be off for 8, then repeat this cycle indefinitely. The humidistat is mounted right outside the coil and picks up the evaporating moisture when the unit turns off...my remedy was to set up a 20 box fan to blow directly on the intake. The Moiswell tech I traded emails with was awesome and said that's a good solution (and even said my proposed future idea of relocating the humidistat to outside the unit would not void the warranty).
Have been very impressed thus far (10 weeks) and hoping for a long service life out of the V320!
We bought this earlier in the year for our 30x60 garage with 12’ ceilings that we were converting into a full gym. Has worked perfectly and keep the humidity to a minimum