I am finishing my basement which about 1000 sq. feet. The foundation is 8 foot poured concrete with about the top 2 feet above grade. The interior walls will be R-19 when the project is complete. The heat loss calculation I completed shows me that I need as many as 30,000 BTU's per hour on the coldest night of the year. I live in central (ish) New Hampshire. I am looking for a small one for the basement. We heat the rest of the house with a Jotul F600 (which is a fantastic stove) that my wife likes. She is pretty firm in wanting an ash pan for the basement stove which leads me to the Jotul F3 or the Vermont Castings Aspen. Does anyone have any experience with these stoves in a basement as I have described? I don't want to get blasted out of the space with heat and I would like a reasonable burn time. Thanks for the help.