I am building a house this summer and I have been looking at the Lil House Outdoor Heater. Wondering if anyone has any experience with one or knows someone who has. The concept is a single supply duct and pulling air with air returns. Really like the idea because I want to heat with wood for sure and love the easy and simple installation. Would require little duct work and I can do the whole installation. Just worried about it being the only heat source. The house is going to be 2000 sq. ft. and single story. Any opinions wood be great.