Heat for free no gas or electricity

This simple tech heats my place , a long 14 wide mobile home in Canada . I have used this for 2 winters now and I'm still here , to tell you the truth it gets so hot in my place I have to open the door at times . No gas , no electricity, it's small and I made mine with a handle on back for easy carrying.ballanced of coarse. I have made a few of my own inserts to help burn certain fuels . What I burn is wood pellets , sawdust, wood , and used motor oil.