I have a timberline insert right now that I picked up very cheap. It works great but is a wood hog. I also cannot get it to burn for more then 4 hours. These winter morings get very cold. I am a very handy guy and have considered working with the stove to help the burn time. but thats another question all in itself. I am considering buying a used pacific energy summit series A. My main concern is will the summit do what I want as far as burn time and will it put out the same heat as the timberline. My house is a cape with a dormer and a sun room addition 18" lower then the main house so the flow of air circulates very well. I can keep the upstairs at about 70 and the main house at 72. Input is greatly appreciated I may end up with the summit this upcoming weekend.