Sealing drafty gas fireplace (crosspost)

greenbean08_gwMarch 25, 2010

I also posted this on the FP forum earlier but I thought it might be a good idea to ask here as well.

I have a gas fireplace that has a pretty significant breeze coming from the bottom vent area when the north wind blows.

Here's the problem (click to enlarge):

From misc

This does not lead directly outdoors. The breeze seems to come through the direct-vent chimney, around the back of the fireplace and out this hole. What can I safely use to seal around this gas pipe under my fireplace? Thanks!

Thank you for reporting this comment. Undo
greenbean08_gw

Time to move along...

    Bookmark   March 29, 2010 at 12:35AM
Thank you for reporting this comment. Undo
energy_rater_la

fire rated caulk.
with the size of the gap you would have to apply the
caulk in stages allowing it to dry between applications.
you should also take a look in the attic to see if
the area is sealed also.
I have seen fire rated foam...but know that foams
shrink and don't seal over time.with caulk you have
control over the application..foam doesn't allow you
that control.
caulk will expand and contract, foam will shrink and
pull away from area being sealed,
this is based on my experience, and testing.
best of luck.

    Bookmark   March 30, 2010 at 11:57PM
Thank you for reporting this comment. Undo
greenbean08_gw

I ended up having the furnace guy look at it today while he was here (I was overdue for a cleaning anyway). He patched it by cutting 2 small squared U-shape pieces of sheet metal, slipped one on each side of the pipe and taped it with the shiny duct-sealing tape. We'll see how it does!

    Bookmark   April 1, 2010 at 1:17AM
Sign Up to comment
More Discussions
Door knob
My front door knob screws won't stay tight so if I...
padfoot4768
Help - how do I fix this tippy fence - did a dumb thing
Am building a 6 foot wood privacy fence (L shape) from...
kashka_kat
Garage door
Something strange happened last night. We were watching...
hoganjr
What is this stove part called
Found this item in the oven, I know it came from the...
pegasus101
adjusting stop on lazy susan
Hi all, I have recently moved into an older home with...
blakekr
Sponsored Products
Wood Molding & Trim: Bruce Other Materials 5/8 in. x 2 in. x 78 in. Red Oak
$29.13 | Home Depot
Enclume Design Country Home Tool Set - FPTS2
$193.99 | Hayneedle
Dimplex Brookings Espresso Electric Fireplace Media Console - GDS25-E1055G
Hayneedle
Pilgrim Home & Hearth NF Three Tea Light Black Fireplace Screen
Overstock.com
Landmann City Lights Memphis Fire Pit - Georgia Clay - 26313
$199.99 | Hayneedle
Transitional 1 light Wall Sconce in Blacksmith Bronze
Overstock.com
Speranza Carrera 6x6 Polished Marble Tile
$12.75 | TileBar
Real Flame Espresso Hudson Electric Fireplace
Overstock.com
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™