I have read a few times where Harman Stoves pretty much burn anything. With that said is it worth buying more expensive pellets? I have been using Hamers, they are harder for me to get this year and thinking of looking at lowes or tractor supply. I used tractor supply one year for a few bags and they left big coal looking clinkers. I only need about 3 ton I have some hamers from last year. So help me out with your opinions or experiences please.