Blaze king double wall pipe question

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Dieselhead

Dieselhead

Minister of Fire
Feb 21, 2011
913
NE
i got my Selkirk dsp and noticed looking up inside through the bypass it doesn't go completely down, anyone else run theirs like this?
 
As long as it's in there a ways I don't see a prob. Put the screws in.
 
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Mine actually comes slightly into the stove.

Is yours tight all around the inside? No slop side to side? Is the pipe setting on a blob of weld?

My simpson double wall required an adapter. That adapter has longer crimped than the regular pipe to pipe joints you're dealing with.
 
If its down far enough to get screws through the holes in the collar and into the inner wall of the pipe it will be fine. Predrill it or the screw will push it in.
 
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The outside of the Ultrablack sits flat on the stove top so I assume the inner is down in the collar correctly.
 
Dieselhead said:
i got my Selkirk dsp and noticed looking up inside through the bypass it doesn't go completely down, anyone else run theirs like this?
Click to expand...

As long as the flare is fully seated, you'll be GTG. My SC30 did the same with the ultrablack, and it drafts just fine with no leaks.
 
Here's a related question. Like the OP, I've got a fairly new Blaze King installation. When the stove's not running, I sometimes smell wood smoke. What's that about? There must be openings in the stove pipe or the stove itself. At the same time, whether the stove's running or not, the carbon monoxide detectors register no problem. Someone please enlighten me as to what's going on.
 
Might be negative pressure in the house is sucking air down the flue.
 
begreen said:
Might be negative pressure in the house is sucking air down the flue.
Click to expand...

That's what I was thinking.

Just make sure the Thermo is closed to reduce the effect.

I have to open a window to get the pressure equalized during a cold start up.
 
begreen said:
Might be negative pressure in the house is sucking air down the flue.
Click to expand...

So the bathroom and kitchen exhaust fans are probably causing the problem. Short of keeping windows open, how would one solve this? Also, if air is coming back down the flue, shouldn't the stove itself contain it? I take it stoves aren't air tight. Also the seam where one pipe meets another probably isn't air tight.
 
Rossco said:
That's what I was thinking.

Just make sure the Thermo is closed to reduce the effect.

I have to open a window to get the pressure equalized during a cold start up.
Click to expand...

Ok, thanks (to both you and begreen).
 
Parallax said:
So the bathroom and kitchen exhaust fans are probably causing the problem. Short of keeping windows open, how would one solve this? Also, if air is coming back down the flue, shouldn't the stove itself contain it? I take it stoves aren't air tight. Also the seam where one pipe meets another probably isn't air tight.
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You are correct. Also your air handler, range hood, and dryer will add to this. The stove is not completely air tight by design, neither is the pipe. Everyone wants to put outside air on the Woodstove but overlook these other items that suck WAY more air out of the house than a stove.
 
webby3650 said:
You are correct. Also your air handler, range hood, and dryer will add to this. The stove is not completely air tight by design, neither is the pipe. Everyone wants to put outside air on the Woodstove but overlook these other items that suck WAY more air out of the house than a stove.
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Thanks Webby. Out of curiosity, you say "by design." Why are wood stoves not made air tight? Seems like it would be a fairly simple thing to do.
 
Right,exhaust fans in the house can pull the smoke smell from your stove through the air intake.
 
Parallax said:
Thanks Webby. Out of curiosity, you say "by design." Why are wood stoves not made air tight? Seems like it would be a fairly simple thing to do.
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If you have a fire going in a stove with the air shut off it will start seeking oxygen. When the doors are openedthe flame will leep out and possibly burn the operator. There is a U.L. requirement have some air. If you need proof I might be able to find pictures of my missing eyebrows from a mishap with my Primo grill last Thanksgiving morning. I have known about this for thirty years and still got burned. All I can say was it was early!
 
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Parallax said:
Thanks Webby. Out of curiosity, you say "by design." Why are wood stoves not made air tight? Seems like it would be a fairly simple thing to do.
Click to expand...
Modern stoves are always allowing some air for secondary combustion.
 
I was told a story by a good old logger / wood burner friend from Van Island (10ft wide Fir anybody)

The old Air tight stoves would actually draft in from the chimney. Maybe its true. Maybe not.
 
So why would cat stoves not be sealed tight? Particularly when there's a cold air intake.
 
sticks said:
If you have a fire going in a stove with the air shut off it will start seeking oxygen. When the doors are openedthe flame will leep out and possibly burn the operator. There is a U.L. requirement have some air. If you need proof I might be able to find pictures of my missing eyebrows from a mishap with my Primo grill last Thanksgiving morning. I have known about this for thirty years and still got burned. All I can say was it was early!
Click to expand...

Cool. Saw this after I responded to Webby. I get it. Still wouldn't seem necessary with the cold air intake, unless of course the intake got clogged up.
 
Parallax said:
So why would cat stoves not be sealed tight? Particularly when there's a cold air intake.
Click to expand...
Non are sealed up tight. If they were, the secondary combustion systems would not continue to fire after the primary air was reduced.
 
webby3650 said:
Non are sealed up tight. If they were, the secondary combustion systems would not continue to fire after the primary air was reduced.
Click to expand...

Thanks. I guess one shouldn't burn wood unless they're alright with a bit of wood smoke smell in the house from time to time. I like it. My wife -- not so much. More than anything, she worries about health problems associated with breathing smoke, particularly for our 8 week old son. I'm guessing the amount of wood smoke we're getting is so small as to be negligible. Am I off base?
 
When burning I doubt you will get any back flow unless you get a puff back or have a some stronger exhaust fans on in your house.
When the stove is not in operation it could happen easier from those same fans as far as getting a smell from the stove because the draft will be weak...may even reverse.
 
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