I`d like to have forced air heating from coal on the next heating season . I have atleast 2000 sq ft of living space 90,000 of btu capacity would seem to be pushing the unit at it`s limit . My concern is that the unit will start spilling coal. Especially if I`m using my existing furnace blower . There must be a fair amount of heat loss with that method. Since I`m a day late and a dollar short on the Hyfire I would the Hyfire II have too much capacity ??