For another example, a Morso Squirrel with about 8' of 6" smokepipe:
With primary draft at about 50%,
700 deg F at stove-top front,
~ 250 deg F about 1' up smokepipe from stove,
smokepipe cool enough to hold hand to it at thimble,
exhaust transparent, unless ambient below ~20 deg. F.

With this unit, it's pretty hard to get temp above 350 deg F in pipe,
just above stove, under any conditions. YMWV.

Fireplaces really rip when you have chimney fire.

HTH,
J