boiler for both firewood, gasoline

Uses firewood, coal, wood coal as fuel Lump coal, oval briquettes, and chaff coal By-product of agricultural, forestry, etc. 1 huge combust burning time is extended because it can maintain sufficient fuel, like firewood, etc. (more than four hours of combustion can be attained by once it filled) 2 a substitute fuel can use, which leads to reduce fuel cost it can use firewood, coal, solid fuel as a fuel also including various kind of by-product , which is not a pollutant, so fuel cost burden is minimized 3 easy to clean wood resin stick in the front face Boiler's efficiency degrades and it is unable to combust, whenever any wet wood, wood with much resin or any mixture were burned, so that resin and any waste may stick inside of pipe or in combuster. Smiley Farm Boiler uses solid alcohol opening front door of its body, so it is easy to clean the pipes and combuster which leads stable heat efficiency. 4 3-pass type, optimal heat efficiency It is design with 3-pass horizontal pipe, so its heat efficiency is quite stable and it is low which fits to green houses 5 easy to re-handle , long life span specially developed at bottom part of combuster, is cast-ironed, so its life span will be long and easy to handle 6 easy usage of both firewood/oil closing firewood-door, boiler becomes a firewood boiler. Closing burner-door, it becomes oil boiler automatically