GG-
I was also looking into their wood burning pool heater.
Did you get one?
My main concerns:
1. Smoking out the neighbors.
2. Like you said, copper pipe carrying the chlorinated water into the pool.
3. Speaking with a current owner, he said you must add firewood to the stove every 2 hours. I had hoped to load it up on a Friday night and let it heat until the morning, but it is not that efficient. You need to keep feeding it every 90 to 120 minutes, which could be a real chore.
Let me know.
Thanks.