I'm not new to burning wood but i'm new to wood boilers. My brother in law is building a new house and is giving me his Legend Boiler. I believe it's 300 gallons, 135000 BTU and seems to be in fine working order. I have a bunch of questions. I have a 2000 square foot home, including basement probably around 3000 square, LP forced hot air and central air. I live in North East PA so are winters can range from mild to bitter. I'm going to have the boiler about 100 feet from the house. Does anyone have any experience with Legend boilers? I've started looking into insulated underground pex but any words of wisdom would help. How about heat exchangers? Can the AC and Boiler exchangers be touching? the furnace sits on the floor, the AC is directly on top of that and i'm hoping to put the boiler exchanger on top of that. Is that possible/advisable?