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  1. #1
    Joseph Stevens's Avatar
    Joseph Stevens Guest

    Default Gas Log Valve Clearance

    Hi, Inspected this little lake home yesterday, does anyone know the requirements for what type of gas valve is required. This is a wood firebox that someone added this gas log to. My concern is that the gas valve pictured is the only shutoff for the fireplace. Once it's lit you have to put your hand in near the flame to shut if off. Also concerned about gas valve being damaged by the heat, or the fact that a kit playing could easily turn the valve and fill the place with gas. I found no label or listing on the gas log.

    If anyone has the requirements for adding a gas log like this that would be great.

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  2. #2
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,682

    Cool Re: Gas Log Valve Clearance

    Vented gas logs must be listed to either ANSI Z21.60 or Z21.84. Since it does not have a rating plate showing a listing, you should treat it as an unlisted logset and call for its removal.

    No problem with that type of shutoff in the fireplace. The gas tubing penetrating the refractory wall appears to be the typical aluminum flared tubbing that comes with most logsets. You cannot use aluminum through walls and appliance cabinets. You can not have flared fittings concealed inside walls.

    Whatever gas line penetrates the firebox walls, it must be packed in the conduit with insulation then the concentric space around the pipe grouted with refractory mortar or furnace cement to the refractory panel.

    You need to look at the fireplace rating plate to see if it is approved for vented logs in the first place.

    Those logs are too big or not centered.

    That's all I saw at first glance...

    Keep the fire in the fireplace.

  3. #3
    Join Date
    Mar 2007
    Location
    Las Vegas, NV
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    222

    Default Re: Gas Log Valve Clearance

    No comment on the sooted logs and wall panels, Bob?

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  4. #4
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
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    Smile Re: Gas Log Valve Clearance

    Well, if you really want to get deeper into what I see:

    the logs are not properly set on the grate
    the grate does not appear to be properly positioned over the burner
    the burner's sand media is spread all over and does not form a proper ramp
    the rockwood embers are scattered
    the burner is too far forwards and off center to the left
    the soot on the logs is normal for vented refractory logs
    some soot is normal on the walls of the firebox. However, there should be no soot on the side panels esp. near the opening of the fireplace
    there should be a truncated cone of no soot on the rear wall surrounded by soot if the unit and air streams through it are proper
    we don't know is there is a damper or damper clamp or if it is properly positioned
    we don't know about the facing,venting or rest of the installation or the room it is installed in, etc.

    That's another 90 seconds worth Bob!

    Keep the fire in the fireplace.

  5. #5
    Join Date
    Mar 2007
    Location
    Las Vegas, NV
    Posts
    222

    Default Re: Gas Log Valve Clearance

    Quote Originally Posted by Bob Harper View Post
    the burner's sand media is spread all over and does not form a proper ramp
    the rockwood embers are scattered
    the soot on the logs is normal for vented refractory logs
    some soot is normal on the walls of the firebox. However, there should be no soot on the side panels esp. near the opening of the fireplace
    there should be a truncated cone of no soot on the rear wall surrounded by soot if the unit and air streams through it are proper
    Yes, the scattered embers and burner sand is what I was interested in. A local gas utility service person recently pointed out to me that if the sand (or what ever material below the log set) is missing or not spread properly to form a nice ramp affect for combustion air travel, improper burn and thus excess soot, along with CO, will be generated.

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