I intend to purchase a wood stove for the primary heat source in my home either this year or next. The house is a bungalow with a full walkout basement. Each floor is about 1000 sq ft. I have a couple of questions before I proceed. 1. Is a stove rated 1500-1800sq ft going to be enough or should I shell out the extra $300 for the 2000sq ft model? This is assuming that we would be putting it in the basement to heat both stories. 2. Or should I purchase two smaller 1000sq ft models and put one in the basement and one on the main floor?