Just bought over 30' of triple wall insulated stainless chimney and the guy had an older (1980) boiler and threw it in for free. The unit it self was only used for one winter then the city ordinance stoped the burning of solid fuels with in town limits, the thing looks great for being almost 28yrs old. The boiler has a massive fire box and a jig saw puzzle of grates and drawers in it. it has pipes that run through fire box where you can mount a fan to blow air through it and the boiler part of it just has piping that runs the inside of the outer walls of the fire box. If nothing else I know I can gut it and get a real nice forced air heater, but I would love to attach it to my existing boiler and utilize some radiant floor heating as well as the dhw that the existing furnace/boiler heats. I guess my question is with the wood boiler I have described is this safe and feasable. I am pretty confident that I have plenty of dumping sites to keep the thing from overheating but I'm not sure how to effectivly turn the pumps on to run to push the heat to the dump sites before the boiler temp reaches that critical point. I am pretty handy with projects like this once guided in the correct direction and I have been heating with wood for 28+ yrs wood stoves only though. Thanks for any help in advanced. I will get the make and model when I go home and some pics.