Pappy is correct. You can use that for drying with just a dehumidifier, however that thing will produce warm air as it works similar to an AC system. If you are in a very cold environment, it will not be a problem, but in warm environment it may get too warm and over-dry your buds.
Also, if you have like 5-6 trees grown outside that you want to dry, that space will be ideal, but if you have a couple plants that will yield a LB or 2, that space will be way too big to properly dry them.
When drying, I have found that it is real critical to control the air space around the material that is being dried. If you allow the material to dry too quickly, you will stall the cure and cause the smoke to taste like grass. If you dry it too slow, you run the risk of mildew. The key is to control the air-mass so that you draw out moisture at a slow but continuous rate that allows the moisture within the material to equalize to the outside.
You would also have to be careful with the use of fans as fast moving air will leach out surface moisture and lock in deeper moisture that needs to be removed. If used they should be on lowest setting and pointed away from drying material so that there is no "breeze" hitting them. This will prevent over-drying the outsides of larger buds, while locking in rot inducing moisture. This is especially important for large/tight buds.