I burned Instant Heat last year and good heat, NO clinkers and not much fine dust left in the bin This yr I was short and a friend loaned me a ton and his brand was Alleghany They seemed to burn MUCH hotter and longer than my InstantHeat BUT the burn pot had to be cleaned daily as there was always a build up of what looks like charcoal. Small price as I did not burn at night, now I feel bad because I paid him back with the only thing I can find Penningtons and have not read much good about them Anyone else burn InstantHeat or Alleghany and what is your opinion?