Not all cast iron stoves are seam gasketed, many are cemented. There are folks here that have been heating for a decade or more with a Jotul F500, F600, F12 or Quad Isle Royale that have not had to rebuild. But I do like the combo of a steel firebox with the cast iron jacket. It allows a deeper firebox, closer clearances and our house is best served by a convective stove.
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