On Tue, 01 Nov 2011 10:07:30 -0700, chaniarts
wrote:



i have 2 propane (vented) fireplaces. every year before i turn on the
pilot i have to clean the inside of the glass to get rid of the soot, so
there must be something coming out of it that would go into your house
if unvented.

No comparison. The vented are no where near the 99% plus of the
ventless. The vented are only 85% or so.