I just bought a quadrafire pellet stove. It loads from the top into a pot and there is a lever I push and pull to empty the pot when it needs it. . The Harman loads from the bottom and pushes the ash out the top as it feeds. Someone told me the Harman is more efficient because of the way it feeds the pellets into the stove. So whats the real story here? Does anyone really know or is this a sales pich?