In the past ten years, "Gasification Boilers" has become a popular buzzword for dealers like myself. It sounds like magic, and many companies are using the label "Gasification Boilers" to market a product to North America that, in my opinion, does not fit the actual needs or mindset of the market here: European-style batch burner boilers. It's been my experience that the boiler market in North America is very low-tech and focuses mostly on outdoor boilers, a technology that is very dirty burning and inefficient. That inefficiency, combined with their growing popularity, has put the outdoor boiler in the EPA's cross-hairs for elimination (at the moment, they are still allowed for agricultural markets where there is no local regulation for particulate output; for more information, please read Obadiah's article here on how the EPA's regulations affect users in the United States). Why are outdoor boilers popular, then?