Buying a wood stove is like a marriage: due diligence.
If you've got some $$$ and/or can do DIY, look into wood/oil furnaces or wood boilers such as Tarm.
Wood stoves:
1. Be sure you have the wood supply set up. It's a wood stove.
2. With your partner ( mandatory ) visit as many dealers you can. Play with the stoves: loading, ash handling, maintenance, and open and close everything.
3. IF cast iron, spend extra to get the porcelain; easy to keep clean and looking nice. That stove will be a center piece for years. Remember, the stove will be where you spend the most time.
4. When you've decided on the wood beast, ASK about problems and for references of those who have used the stove for > a year.
5. REAL warranty: manufacturer, dealer, who and how IF serious problems come up.
6. Installation and flue (if needed) WILL be at least the cost of the stove. References and cost.
And read up on hearthnet evaluations and owners' comments on the stove.