[blacksmythe]

You have to convert the wood to charcoal to burn hot enough for a blacksmith forge: https://en.wikipedia.org/wiki/Charcoal

I highly recommend a visit to Plimouth Plantation to anyone interested in 1700's era technology: https://www.plimoth.org/

Or Old Sturbridge Village for 1800's era technology: https://www.osv.org/