Somebody asked about this in another thread, and now I can't find it. Either I'm getting old or this forum is getting busy--or both. Anyway, according to the spec sheet, the 60 has a firebox capacity of 82 gallons, which the Google conversion reveals as 12.75 cubic feet, assuming that the "gallons" stated are "dry" gallons. Whatever--12.75 cubic feet sounds about right. The loading door is 22 inches wide and 11 inches high. There's probably one or two chunks in my 40 some-odd full cords that wouldn't fit through that opening, but precious few. And I have ways of dealing with them.