Does anyone have any feedback positive or negative on the gassification boilers produced by Alternative Fuel Systems? How do they compare with Tarm or EKO? I see many of the readers have systems by EKO, is it the preferred system out there currently? I am definitely making a purchase on a system and am leaning towards the Alternative Fuel Systems product, but want to put my feelers out there for any constructive input before I purchase. I will be purchasing a 200,000 btu unit, having a shop attached to my house and want to install a heat exchanger in my house's current hot air system as well as install two hydronic heating units in my shop and a heat exchanger for my domestic hot water. Thanks to all.