What you are looking at in the picture is roughly the minimum amount of fire wood (2.2 cords, roughly 4 imperial tons) it takes to "casually" heat a 1,900 ft2 home in Southeastern Pennsylvania, starting with occasional cold nights in October, becoming a daily routine by the end of November, and scaling back to cold nights sometime in mid-March. "Casual" heating means that the traditional oil furnace is available for backup on lazy weekend mornings, when away for work, or for errands. (Fu....
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