I have a friend wishing to put in an outdoor gasification boiler on an acre of land a couple of miles from me. Here is the response from his insurance company. Talk about trying to discourage wood burning! No wonder people opt for Heat Pumps. "The unit to which you are referring is nothing more than the original outdoor hot water wood fired boilers. If they are not maintained properly they will cause the same concerns that any earlier wood fired boilers cause. Therefore, we require the MINIMUM of fifty feet (50’) of clearance to any insured or combustible buildings, as well as tree lines. We will likely not budge on that requirement as we have seen these units “destroy” or damage property within that distance. We have seen people alter them after installation, over which we have very little or no control as we cannot “baby sit” each and every Insured, and damage results after we have “accepted them” on the brokers’ word. Our stand will remain the same as the other insurers. If you decide to place the property with us we will have no alternative but to charge a surcharge on any and all buildings within the 50 foot distance from the unit. Any property within these buildings will also be excluded from coverage."