be careful when you use this stuff osage orangOsage-orange firewood - Osage-orange (locally called hedge), which is an incredibly dense and hot-burning wood. The dry weight of Osage-orange averages 4728 lbs per cord versus 4200 lbs/cord for white oak. It is rated as potentially producing 32.9 million btu’s per cord - compared to 29.1 for white oak, 27.5 for shagbark hickory, and 24.2 for green ash, for example. A stove must be well made because Osage-orange can produce so much heat, especially when lots of coals accumulate - which can get to about the same temp as coal. Many old stoves that used Osage-orange were ruined from overheating. Airtight stoves are less susceptible to heat damage because one can better control the temperature of the fire.