lsucet
Minister of Fire
Pine and in general softwood is not a problem with a BK. You will not get the same burn times like others with hardwood. You will have so much control over the stove with the thermostat that doesn't matter which type of wood you use. 80% of what I burn is pine and I have no problems getting over 20 hrs out of a load on a old and weird floor plan house. If mix it with hardwood in shoulder seasons I can go 26-27 hrs. I still getting when cold outside a decent 14 hrs out of a load of pine. Of course everything will depend on your heat demand to stay warm