I dispose of coon fat in my wood burner...a little at a time...it will certainly raise the temperature in the house in short order.

That would be Rice Bran Oil. Longest shelf life (2 + years) high smoke point (450') and is as healthy or healthier than olive oil. Plus it has almost no odor. Sorry it is not a animal fat so a little off topic but you wanted something healthy.

I've burned a lot of coon fat in my wood stove in the fur shop, that stuff has some real BTU's in it. "A little at a time" are words to be heeded.

When we had the mink ranch my Dad would render out some mink fat to use as waterproofing our boots. In 1970 I was attending the U of Wyoming and every time I walked across campus every stray dog would follow me. If I stopped to talk to someone I had to kick the dogs off that were tryin' to use my leg as a urine post!!

I rendered beaver and coon oil to try in an oil lamp, it didn't work. burned to hot and fast and just burnt the wick up. I have rendered pig lard, You just have to do it slowly on low heat if too hot it smells really bad