DIYbanter - View Single Post - Natural Gas Log Set

Leroy

wrote:
In my house - which I've owned for about 18 months now, there's a
fireplace with a natural gas burning log set... wifey and I were
looking at it last night, trying to figure out if it actually threw
any heat - or was it purely for the nice-fire-burning-atmosphere...
anyways, I turned the gas off months ago when we bombed the house for
bugs. And I couldn't get it lit and didn't want to spend all night on
it. That's not my question.

In the course of looking at the fireplace, I noticed that something
was placed in the damper to keep it from closing fully. But oddly
enough no cold air was blowing down the chimney...

Because your warmer room air was moving up the chimney?
Burn a cig or some paper dear the damper and watch where
the smoke goes.

The question - since the damper is open, I am now questioning whether
or not the log set is vented or vent free. Is there a way to tell?

Well with the current 'slightly open' damper, it IS vented. Burning
gas needs to be vented.