Unless the outdoor unit itself is pressure tested to make sure it has no leaks I doubt anybody would buy it. A friend of mine lives on a farm and his unit sprung a leak in the woodburning unit. The leftover ash from the wood or coal is corrosive to metal and ate it. I doubt if there is a good used market but the bargain hunter or local paper might be worth a try. Beware, anybody you sell it to can become an enemy if it goes bad. We have so damn much snow Canadian Tire has snowblowers on sale again. LOL.:laughing: The Canada Geese are sitting in it which is hilarious.