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Gas fireplace help

Old 11-15-2015, 03:43 PM
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Default Gas fireplace help

New (post Sandy) house has gas fireplace. Never worked properly and just realized that it is O2 starved. If I keep the glass open even as little as 1/2" in one corner it works properly. As soon as I shut glass door and latch it the valve shuts and the flame goes out. Looked all over inside the box and do not see any type of vent that might be obstructed. Flue is open and clear. Any ideas? Calling manu tomorrow.
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Old 11-15-2015, 04:00 PM
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mine draws air from a single pipe which is inside the exhaust pipe.if yours is the same maybe the inside pipe is clogged the idea is the cool air comming in helps cool the exhaust gasses. they sometimes have trouble running until the air in and the exhause out are at a different temp. that usually happens on a cold start.
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Old 11-15-2015, 04:06 PM
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Originally Posted by NJFISH View Post
New (post Sandy) house has gas fireplace. Never worked properly and just realized that it is O2 starved. If I keep the glass open even as little as 1/2" in one corner it works properly. As soon as I shut glass door and latch it the valve shuts and the flame goes out. Looked all over inside the box and do not see any type of vent that might be obstructed. Flue is open and clear. Any ideas? Calling manu tomorrow.
Bird nest in outside vent opening.
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Old 11-15-2015, 04:13 PM
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Do you have the installation instructions? If not, Mfg. and model number?
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Old 11-15-2015, 04:40 PM
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No birds nest. Completely unobstructed on the top end. It's the draw that's being restricted.

I'm not at the house now so I don't have the manual but there was nothing in it for troubleshooting this issue. Also checked the installation manual and it gave nothing. I just jotted down the number to call tomorrow. NFI or something, out of California.
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Old 11-15-2015, 04:40 PM
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if you had a company install it call them back
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Old 11-15-2015, 04:50 PM
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Originally Posted by djy View Post
if you had a company install it call them back
That's the plan, just thought if it was simple i'd do it myself.

Innovative Hearth Products
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Old 11-15-2015, 04:52 PM
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Originally Posted by NJFISH View Post
No birds nest. Completely unobstructed on the top end. It's the draw that's being restricted.

I'm not at the house now so I don't have the manual but there was nothing in it for troubleshooting this issue. Also checked the installation manual and it gave nothing. I just jotted down the number to call tomorrow. NFI or something, out of California.
Ok, get a phillips screwdriver and lossen and tighten the millivolt connections from the wall switch to the gas control valve.

There is also a brown thermopile wire (3x8's open end wrench), loosen that and then just snug it tight like a compression fitting.

Try that.
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Old 11-15-2015, 04:54 PM
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I'll try that when I back down next week. Thanks.
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Old 11-15-2015, 05:39 PM
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Innovative Hearth Products designs and manufactures a wide variety of fireplaces and fireplace accessories within 4 separate brands: Astria Fireplaces, IronStrike Stoves & Inserts, Superior Fireplaces, and Comfort Flame.

The model number would make it possible to look up how the fireplace is supposed to get combustion air. There are several different ways to supply combustion air depending on the mfg and model. If it was a wood stove, it would require make up air by code, not positive about gas. There should be a set of tags hanging by a chain or wire from the gas valve that has (I think) the needed info.
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Old 11-15-2015, 06:18 PM
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That condition is called ghosting. You are burning up all the oxygen in the fireplace before the draft is established which pulls in combustion air. I am assuming this is a direct vent fireplace. This is usually caused by a improper vent configuration or an improper burner air shutter or vent restrictor setting.
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Old 11-15-2015, 06:37 PM
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Originally Posted by crump190 View Post
That condition is called ghosting. You are burning up all the oxygen in the fireplace before the draft is established which pulls in combustion air. I am assuming this is a direct vent fireplace. This is usually caused by a improper vent configuration or an improper burner air shutter or vent restrictor setting.
I had a similar problem . Had a 90 degree pipe out of the top of the fireplace to the direct vent chimney because a tv sat on top of it. Replaced it with a 45 degree and helped a bit but the flame still sucks. Miss my old wood fireplace.
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Old 11-15-2015, 07:57 PM
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The other thing I can think of right off the bat, is make sure the burner tube air shutter is completely open if it's running on LPG instead of Natgas, if it's been converted to propane.Most have an adjustable air shutter.
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Old 11-15-2015, 08:30 PM
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Make sure the O2 sensor is not sooted over
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Old 11-22-2015, 07:51 PM
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A lot of them have a flex tube like on the back of your clothes drier that vents to the outside. OSAK. Outside air kit. If the tube gets kinked it won't let enough air in.
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Old 11-23-2015, 07:21 AM
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How about the air inlet adjustment on the burner tube? Does the flame change color when the door is open and shut? You may need to increase the air flow to the burner inlet.
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