I'm very happy with the decision. My home would burn about 1k gallons a year. It's a no brainer for me. I only wish the technology on the gasser models wasn't so new at the time we purchased in 2008. But Maine being Maine was one of the first to jump on the band wagon with the EPA Phase 2 emissions BS. Not knowing anything about OWBs, we jumped into it and bought CB's first model gasser (E-Classic 2300) which has had several issues to deal with. That being said, I do not know where we would be at this time if we had not made the switch. I now have 2 OWB's heating both my home and 4 of my greenhouses. With current fuel prices, a ball park estimate would be somewhere in the neighborhood of $15 to $20k a year for the oil we would need each season. I'm spending about $4k for 35-40 cord of wood tree length (5 pulp truck loads at $750 a load plus gas and oil to process). Based on what we used to pay for oil prior to 2008 before fuel prices went crazy, versus 2008 to current prices, our savings on oil paid for the system in about 2 years.