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Chimney screws problem

Post in 'The Hearth Room - Wood Stoves and Fireplaces' started by WellSeasoned, Nov 17, 2012.

  1. WellSeasoned

    WellSeasoned Guest

    I think I did something stupid last year. When the installers installed everything, they failed to add any screws up at the top of the pipe at the ceiling box, so I did when I went to clean the chimney. I added a 1" screw (not knowing any better) that goes through both stove pipes & ceiling box (double wall). My probe tilts when the stove is cruising, I dont think the screws are though. Are these screws ok long like that? Should I add smaller screws or is this a bad idea... Thx

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  2. DAKSY

    DAKSY Patriot Guard Rider Staff Member

    Joined:
    Dec 2, 2008
    Messages:
    5,384
    Loc:
    Averill Park, NY, on Burden Lake II...
    Normally, you don't need screws at that point. The screws should be in the slip section of connector & that will be enough to secure the install... What do you mean by "My probe tilts"?
  3. WellSeasoned

    WellSeasoned Guest

    Thx for the quick response DAKSY! I added screws because I have a telescoping stove pipe, and when I ran a brush down it last year for the first time, the pipe slid down. (i had the lower screws out, newbie mistake)

    My flu probe tilts, even though I drilled a straight hole through the dbl wall pipe. I think as the inner pipe is hotter than the outer, it expands and contracts differently therefor the probe tilts down ever so slightly.
  4. BobUrban

    BobUrban Minister of Fire

    Joined:
    Jul 24, 2010
    Messages:
    1,711
    Loc:
    Central Michigan
    Probe will tilt - that is the reason I don't want one. Your scews are probably unecessary at the top but sure offer peace of mind as I have some in my top = just makes me feel better. Just make sure the long scews actually went through both pipe and liner and did not just bened the pipe on the inside. Very easy to do and this could cause issues of all sorts. I imagine that they would not move as much because the pipe is cooler up that high but I would pull it apart when it cools just to make sure you didn't just cram dents into the inside pipe.
  5. nate379

    nate379 Guest

    I have 3 or 4 screws in that location OP. The installers put them in. They go through everything to where the brush rubs on them when I clean the pipe.
  6. WellSeasoned

    WellSeasoned Guest

    Thats exactly what happens to me when sweeping. The probe ain't too bad, I think thats why the directions explain to make the outer hole a hair bigger.
  7. HotCoals

    HotCoals Minister of Fire

    Joined:
    Oct 27, 2010
    Messages:
    3,357
    Loc:
    Rochester,Ny.
    My telescoping pipe has to be pushed up to disconnect the pipes...won't slide down because of the bump stop of the pipe below that.
  8. Highbeam

    Highbeam Minister of Fire

    Joined:
    Dec 28, 2006
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    9,409
    Loc:
    base of Mt. Rainier on the wet side, WA
    Probes tilt, normal. The inner and outer shells of the double wall expand differently so that's what you get. It's not bad but noticable. Drill at low temps since all summer you want it to be level.

    You didn't accomplish anything with screws where the double wall hits the ceiling support box. Really. There is no way at all to screw this connection together since you have that adapter piece that locks into the double wall and then snaps into the ceiling box. You also didn't hurt anything.
  9. charly

    charly Guest

    I have double wall pipe on both my stoves and this probe on both, They stay in one position all the time. You drill a 1/4 inch hole , mount the clip that comes with the probe into the whole, then the probe slides into the clip for a nice interference fit. Probe is a Tempoint, it used as part of an oil burner test kit. Can be calibrated by putting the probe in boiling water and checking the reading, then adjust as needed, comes with instructions. I like it because it's accurate, and it's easy to see form across the room at a quick glance. They go for around 100 dollars at most places, put here's the cheapest I found.

    www.professionalequipment.com/bacharach/brand.html
    BACHARACH. Bacharach has been ... Tempoint® - (200 to ... Manufacturer Item #: 12-7014 Your Price: $68.95 This Bacharach boiler / furnace thermometer can be used …

    100_6371.JPG 100_6375.JPG 100_6380.JPG

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