I scored an excellent craiglist deal on a brand new (still on the crate F55 Carrabasett stove. $1600. In the brochure, it states the overall stove efficiency is 84% while the little notecard inside the stove claims 64%. I assume overall efficiency is different than whatever the other efficiency is reporting or is it a mistake? Also, we're having a stove shop install the stove and were told there would be no warranty on the stove since we did not purchase it from them. Can the jotul be registered directly with jotul and still have warranty coverage? Incidentally, I never knew Jotuls were assembled right here in Maine. The factory is only 20 min away from where we live.