Is the Eva-Dry Mini Dehumidifier enough for a basement?

Usually not. It is built for closets, bathrooms and other small enclosed spaces. A damp basement needs a larger compressor dehumidifier with a bigger tank or a drain hose.

How often do I need to empty the tank?

It depends on how damp the space is. In a humid bathroom or closet the small tank can fill within a few days, so check it often.

Does it work in a cold room?

It works best in warm conditions. Thermoelectric units like this one lose much of their moisture removal in cool rooms, so a garage or unheated space in winter is a poor fit.

Do I need to install anything?

No. It is a plug-in portable unit with no drain line or plumbing. Just place it, plug it in and empty the tank when it fills.

How is it different from a full-size dehumidifier?

A full-size compressor dehumidifier removes far more water per day and suits whole rooms or basements. The Eva-Dry Mini is smaller, quieter and cheaper to run, but it handles only small spaces.