So my in laws have a Sierra wood stove in their basement, just like the one in the pictures, that they use for supplement heating. Having checked it out a time or two, I believe this thing is very inefficient due to the lack of a baffle (don't know if it had one originally or not?) or even a damper in the flue pipe, just a fire in box! I thought about trying to add a baffle to it, but we live well over an hour away and when we are at their house it is either burning or more often I simply don't have time to study the matter. Honestly, it probably isn't even worth messing with. I have suggested that they upgrade, which so far hasn't happened due to funds, but I believe that will change soon. I am torn as to what kind of stove to suggest to them for a couple reasons. 1. Their wood generally is not the driest. I have talked to them about this, but in reality, Pa is heading toward 70 and has burnt wood that has been "seasoned" for only a couple months most all of his life, I'm not expecting a change. 2. With the stove in the basement, they usually go down to load it, then forget about it until it is time to load again. For these reasons I hesitate to suggest a EPA tube burner or most any modern stove. I'm thinking that a quality pre EPA stove may be the best choice. Anybody have any specific stove suggestions (what pre EPA stoves actually worked really well?) or other ideas here? FYI, I don't know what their budget would be, but I don't see them spending more than $1k, maybe $2k max, all in.