Cold Air Comes In

tlanOctober 18, 2007

I have Kingsman gas fireplace model ZDV-4228 installed last year. The air is coming from underneath of the fireplace where the pilot is. Can someone help me how to solve this problem. The store sold us that won't help because we fought so much about everything last year. Thanks a lot

Thank you for reporting this comment. Undo
jasper60103

I had same problem with my gas fp at my last house. I've heard others complain as well. Its a installation problem and I'm not sure how to remedy. Did you hire out the install or DIY?

    Bookmark   October 19, 2007 at 12:05PM
Thank you for reporting this comment. Undo
cynandjon

The store you bought it from wont help you? Hmmm did they ever hear of better business bureau? Did they install it?
I also found the link below, it might be worth a try if you cant get help

Here is a link that might be useful: consumer complaints

    Bookmark   October 19, 2007 at 10:01PM
Thank you for reporting this comment. Undo
gyoung

Sorry to bring up an old post but I'm having the same problem with a Kingsman. Did you ever resolve this?

I found this information (posted below) on another site but it doesn't really help. I have several floors in my townhouse, the fireplace is on the 2nd floor and everything is insulated very good on the floor above. The only other place I can feel some cold air is by the front door which is below the fireplace on the first floor (basically just the door and garage).

Do NOT insulate the fireplace directly! This is a fire hazard! Clearances are air spaces. You fireplace uses cold air to insulate the inner flue. This cold air dumps into the chase at the starter collar at the top of the Fp. The chase will always be full of cold air. The answer is not more insulation or sealing but physics:

If you open a window, will warm air exit the house or cold air infiltrate in? How does it know? Physics. For cold air to infiltrate in, there must be either a higher pressure outdoors than in or a negative pressure inside With Respect To(WRT) outdoors. If cold air is manifesting at your fireplace, it means you have negative pressure and the rest of the house is relatively tight leaving the Fp as the path of least resistance. How to minimize it?

First, reduce the negative pressure. Seal the top of your house like Tupperware. Next, provide a dedicated source of fresh air elsewhere in the house. Next, seal & balance forced air ducts. Provide makeup air for any exhaust fans.

    Bookmark   January 5, 2008 at 12:16PM
Thank you for reporting this comment. Undo
shadow700

Fireplace bumpouts are supposed to be insulated, but they rarely are. Obviously, you can't just dump insulation in the space around the unit. However, you should insulate the bumpout walls just like any other exterior wall and then cover the inside of the bumpout with drywall. Assuming the floor of the bumpout is not on concrete, it should be insulated and covered in plywood.

If your bumpout is a projection (you can get under it from the outside), you might be able to get under it and insulate properly.

I've installed several gas fireplaces and every single one of them required the appropriate sealant at each flue joint. In those cases, an installation to the manufacturer's specification would mean no cold air infiltration into the space around the unit.

    Bookmark   January 9, 2008 at 8:48AM
Thank you for reporting this comment. Undo
woodinvirginia

another thing to check is to see if you have sealant where the gas line comes into the house. Unfortunately you CANNOT use silicone there by code but you can use a latex (water based joint compound) to seal the space around the gas line
where it penetrates the floor.

    Bookmark   January 15, 2008 at 1:31PM
Thank you for reporting this comment. Undo
bignich

I had the same problem. On a really cold night cold air would blow under the fireplace. So much so that if you were lying on the floor close by it was uncomfortably cold there. Our FP gas insert was installed in a keyhole with the outside looking like a chimney from ground level up to the roof. Anyway, curosity got the best of me and I figured if the pro installer contractor screwed up why pay another to screw it up worse?

I ended up breaking out the marble tile surround and sheetrock around the perimeter. I disconnected the gas line and removed the back vent from outside and slid out the insert. I climbed in the keyhole and noticed it was insulated but quite sparsely and had a gaping hole near the roof about 8" in diameter. In other places there was only an inch thick or so and very little around the vent pipe. I bought a small roll of insulation and used it all. I also fabbed a 12" pipe to go around the outer flue pipe so insulation wouldn't contact it. Put everything back together after I stubbed out a gasline for the BBQ.

I also did a new fireplace surround in slate as we were tired of the marble. Three things improved in my home that I have wanted to do for several years and it didn't take more than a few hours. No more cold!

    Bookmark   January 15, 2008 at 10:03PM
Sign Up to comment
More Discussions
replacing wood burning stove with wb fireplace, will it work?
Living room had a wood burning stove. There's a 6"...
petecon
Can woodstove clog a chimney in a month??
We had a Quadrafire 5100 woodburning stove insert installed...
kitasei
best way to clean a brick hearth?
i have tried washing the brick, but it still looks...
bmmalone
Linear Fireplace
Can I put a 60 inch linear fireplace in place of this...
kjez2010
Couple of questions about installing stone veneer
Little background - original lava rock fireplace was...
rosebay
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™