First off, understand that installing a wood burner is equivalent to building an above ground furnace. Always check with your insurance company before you start. Most of these insurance companies are going to require it be installed professionally. It is highly recommended that this be installed professionally, as there is a lot of precision involved, and one mistake can easily cause a fire to break out in your house or apartment.
Then you need to figure out exactly how big of a wood burning stove you will need. The best thing to do is consult someone who owns a hearth shop. Have this person come out, and he or she will help you determine the best wood burner for the size and space you have set out.