Hi,
Are you talking about the open vents that allow heat from the first floor to
rise up to the second floor--such as are found in old farmhouses with wood
stoves? If so, I saw them recently in a mail-order catalog.......it might
have even been the Vermont Country Store, but I can't remember. (I'm on too
many catalog mailing lists--they tend to blur together after a while.)
I will look thru the pile and see if we still have that catalog.
Deb Bledsoe