In article , "JR Weiss" wrote:
"Doug Miller" wrote...

You're apparently thinking of convection, which does indeed transport heat
only upward.

Not quite...

NATURAL convection will tend to transport heat upward..

Merely "tend to" ??? Seems you misspelled "always". :-)

FORCED convection,

No such thing. If it's fan-forced, it's not convection.

as in a forced air furnace, can transport heat in any direction it is
directed by fans, ducts, etc. Wind tends to transport heat sideways in the
local case...

Wind isn't convection either.

OK... Where have you found a general definition of convection that excludes
forced convection or explicitly limits it to natural vertical movement?


Consult a dictionary; I think you'll find that convection is by definition the
vertical transport of heated fluids under the influence of gravity.