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Sales and Service for Heat Innovations Outdoor Wood Stoves Coalman Coal Furnace A NEW GENERATION OF COAL & PELLET FIRED BOILERS After 16 years of designing, testing, and refining, Heat Innovations is proud to introduce the Coalman Stainless. The Coalman Stainless is an outdoor furnace that gives you the best of both, high efficiency and low maintenance. Many Coalman owners never shut it off. Even in the summer it continues to provide cost effective heat for your domestic hot water, pool, hot tub, and more. The Coalman Stainless is available with a mild steel or stainless steel water jacket Specifications Length      88"  94" with latches Width               40" 48" with chimney Height      91" 102" with exp. tank Weight      2600 lbs. water jacket   108 US Gallon 1 1/2" diameter supply & return lines 8 " diameter chimney 1000 lbs. coal hopper Water Jacket         7 Gauge Steel Stove Body            Stainless Steel The Coalman Stainless is available in 400,000 & 600,000 BTU models. Inside the Coalman Controls 2 Controls 1 Click Images to Enlarge Cutaway View Controls 2 Controls 1 Coal is the most abundant fuel in the world. At current rates of consumption, Canada has a 900 year supply of coal and a 30 year supply of natural gas. For this reason, using coal as your fuel of choice can give you the best price stability in both the short and long term. The four ranks of coal are anthracite, bituminous, sub-bituminous, and lignite. These are distinguished primarily by their percentage of fixed carbon and heating value. Bituminous, sub-bituminous, and lignite coals are the types of coal recommended in our stoker systems. These types of coals are the most plentiful with numerous mines across western Canada and United States. The dryer the coal, the less heat you will need to waste drying the coal. Cheaper coal is not necessarily the most economical. For this reason, our recommendation is using a bituminous or sub-bituminous coal. The high moisture content and low heating value of lignite may increase the maintenance required on a furnace and increase the cost of heating as compared to other coals. Read More