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Old Blaze King Stove - Add Baffle?

Discussion in 'Non-EPA Woodstoves and Fireplaces' started by lukem, Oct 28, 2013.

  1. jetjr

    jetjr

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    My tubes go up to the top front of stove. Originally had a blower that blew in down out bottom front than out the 2 vents at the top. Not sure of the year of the stove. When I get home I will take a pic of inlet and outlet.
     
  2. WeldrDave

    WeldrDave Military Outpost Moderator

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    I don't think putting a baffle on those tubes will hurt anything "at all".. The temps are not going to get hot enough to "warp, bend or disrupt" anything.
     
  3. jetjr

    jetjr

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    that's what I was thinking. the tubes are a heavy metal the same as the stove. I think it will help more than anything. will baffles lead to any problems with more creosote buildup in the pipe? I clean it about every 2 months and it has never been to the point were I said man I really needed to clean that thing. its always just been a little bit of buildup.
     
  4. WeldrDave

    WeldrDave Military Outpost Moderator

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    Not at all! I'm not a practicing engineer but, what happens is creosote is from unburned gasses, now by putting the baffle in will create a more complete burn. After I installed my baffles in my old girls, I have "MUCH" less creosote to clean out! "MY OPINION" and I've been burning for many years, I think your fine…. whats the worse can happen? you get better efficiency….
     
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  5. nate

    nate Banned

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    The baffle could cause too much heat in an area and damage the stove. Could screw up air flow to where the stove doesn't burn as well or perhaps cause more creosote.

    I'd consider putting in a flue damper well before I thought about modifying it.


    Also... Uh.... I'm confused.... Lukem/jetjr are you the same person? How did this go from one person's thread to another's?
     
  6. jetjr

    jetjr

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    I agree with weldr on this one. I don't think it will overheat it. I also agree with the gases getting burned more efficiently. I read a bunch of stuff and it seems that most people like them.
     
  7. WeldrDave

    WeldrDave Military Outpost Moderator

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    Lets look at some basic physics. Melting temp of steel, about 2500* , fire brick can sustain over 2000* for hours, even if the tubes were very thin wall, you would need a fire in the temp range of 1500* to even get them red and start distortion. If the "hottest" you got the stove was 1000* you still would not do any damage to the stove. Now, thin wall stove pipe wouldn't like it and possibly glow. If you heated your stove like that frequently you may get some warpage, "but" not by installing a baffle. It has been done on "many" of old smoke dragons and has worked well. Heres another way of looking at this, some people put micro thin aluminum foil on their grill when cook, the melting temp of aluminum is about 1300* we cook on the grill all day at 300* to 400* the foil doesn't melt…. Jetjr If you do decide to baffle, you just need to experiment and go slow:), you'll be fine.
     
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  8. nate

    nate Banned

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    Seem to be missing my message.

    What is a welded in baffle going to do that a flue damper won't? Sounds like maybe you have too much draft at times is all... And an adjustable damper vs a non adjustable baffle might be a better solution.

    As for getting things hot, you could have a "500*" stove, but that doesn't mean all parts are only 500*. If an added baffle concentrates the flame/heat you could be getting part of the stove really hot.
    I'm not saying this WILL happen, just was a THOUGHT.

    I'm not saying NOT to modify the stove but I think talking to the Blaze King folks may get you some info and less "this might work".
    In my dealings with them they are VERY down to earth and customer friendly.
     
  9. jetjr

    jetjr

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    I agree with you both. Nate I understand the point of it was engineered this way. Newer stoves all seem to be baffled in some form or another. I did not measure but the tubes are definitely not thin walled. PHOTO_20140316_084805.jpg Inlet tube (little dusty in their) PHOTO_20140316_084854.jpg outlet tube. The stove is an All Nighter also not a blaze king. I hijacked another thread. Its date of manufacture is 1978.
     
  10. jetjr

    jetjr

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    Also no plans on welding mine in. Just lay it on the tubes.
     
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  11. WeldrDave

    WeldrDave Military Outpost Moderator

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    I understand now what your saying... With a damper, you restrict the flow of gasses up the stove pipe, in this situation we "do not" want to restrict the flow, we want to redirect it and slow the speed of travel to the flue, there for getting a more complete burn .

    I've done this to 2 Fishers and helped a friend do it to his old Kodiak, It was like night and day difference, the combustion area heats up quicker and the stove stayes hotter in general and you use less wood in the process.
     
  12. nate

    nate Banned

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    Ok, was wondering what was going on with you replying in Lumem's thread!

    I was under the impression it was an older Blaze King that was getting worked on. I didn't see the dates till now. The site isn't very "my iPhone" friendly and the dates are faint. I also don't get location or sigs. I say "my iPhone" because it someone works fine for everyone else!
     
  13. DexterDay

    DexterDay Administrator

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    It's not just about the damper slowing down the air, adding a baffle, directs the air to move in a certain path and forces the air to go across the length of the stove top.

    Been proven in any stoves. With Fisher's at the top of that list. There is a member on another forum "Coaly" that is wise in the ways of Fisher and he installs them and recommends them to others.

    I would never suggest someone welding a baffle, but to set a piece of steel somewhere, so the exhaust gas now has a "route" or a path that it has to take, rather than just going straight up the flue (even with a key damper, the hottest air stays in the back upper part of the stove). If you had a plate that diverted that air to the front of the stove, then up and over, and finally back to the flue outlet. You would get more surface area of the stove to a hotter temp, rather than just the back 1/2 of it.
     
  14. jetjr

    jetjr

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    Sorry for the confusion. Glad we are all on the same page.
     
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  15. nate

    nate Banned

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    Was all me.... Didn't mean to add "drama"!
     
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  16. jetjr

    jetjr

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    Nah. It makes for more interesting conversation. You also brought up valid points.
     
  17. jetjr

    jetjr

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    Dave would 1/4" plate be to thin. I may be able to get a piece free but would rather just do it once so if I have to buy a piece I wamt to do it right.
     
  18. WeldrDave

    WeldrDave Military Outpost Moderator

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    It's gonna warp with a 1/4" can you use it, yes "but" i wouldn't. Go a minumum of 3/8", I prefer 1/2", pluse it holds the heat longer as the stove cools down. Any welding/metal shop may have a scrap piece laying around and you'll most likely pick it up for $20 bucks or so.
    Good luck, I would stay thicker;)
     
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  19. papadave

    papadave

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    The idea behind the baffle is to keep the gases in the stove to burn more completely (as much as possible) rather than letting them get into the stove pipe.
    My 1985 Ashley has one and I could get 2ndary burns when conditions in the stove were just right.
    The flames and gases had to go up, hit the baffle, then get forced to move along the baffle before exiting. This would create a cleaner burn.
    No warpage, and that stove got very hot at times.......another story that I've told before.
    Oh, and in another land....far far away, there were several threads about guys who not only installed baffles, but who also installed 2ndary air tubes in older stoves.
    I don't recall any of them having issues with warping.
    Didn't "Coaly" migrate here?
     
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  20. WeldrDave

    WeldrDave Military Outpost Moderator

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    Didn't "Coaly" migrate here?[/quote]

    No Dave, he didn't... I actually had a personel phone call with him about it.
    PM me if you want to know more.
     
    Last edited: May 16, 2014