Hello, this is my first post on this site, although a read many posts already. I am in the market for an add-on wood burning stove as a secondary heat source. My goal is to use as a stand alone system using existing duct system. I currently have a heat pump with LP furnace as an auxiliary. Our house is 2400 sq., mainly on the first floor. Second floor is smaller. I am wondering what will be an ideal wood burning furnace for my house. I read a lot about Tundra, posted a couple years back. Is it still a good buy? I have no HVAC experience. My budget is around $2k. Appreciate any input.