Is it a double-wall flue?

[soupy1957]

One thing I DIDN'T notice (if you can imagine that!) is whether or not the double-wall flue pipe that was installed with my wood stove last year, continues as "double wall" pipe all the way to the outside cap? Anyone know what the customary "professional" install is? Double wall all the way up, or just to the top of my living room, before the attic and outer pipe?

-Soupy1957

 

[vvvv]

just to the top of the lr, 6" clearance for 2wall pipe

 

[oldspark]

just to the top of the lr

Your new avatar looks a lot more like you eh?

 

[vvvv]

just to the top of the lr

Your new avatar looks a lot more like you eh?

naw, i'm ugly

 

[soupy1957]

The installer had put a fairly broad-based Baffle on the roof, so I figured perhaps it might have been double-wall, all the way up.

That being the case, ........when we're monitoring the temp of the flue gases in a double-wall set up, I wonder if there has to be some special consideration for the single wall piping going up thru the attic, and outside? In other words, the first pipe sections to fail or burn thru, would be the single-wall stuff, eh? So any "failure" over time, would most likely occur in the single wall sections, yes?

-Soupy1957

 

[mitchinpa]

Mine goes all the way up to the cap. (about 31 feet high)

 

[Pagey]

I would say the typical install is connector pipe (whether single or double wall) to the ceiling support box where the connector pipe marries double wall Class A UL 103 HT pipe.

 

[vvvv]

2wall is black? class a is silverish?

 

[soupy1957]

The piping in the attic is Silver, and of course, so is the piping to the cap. Based on that, it would confirm that it is single-wall piping from the LR Ceiling, to the Cap outside.

-Soupy1957

 

[Pagey]

I have never heard of single wall Class A. Now, I'm not saying they don't make it, but all I have ever seen is double wall or triple wall. I cannot imagine achieving the 2" CTC using anything but double wall at the very least.

 

[oldspark]

The piping in the attic is Silver, and of course, so is the piping to the cap. Based on that, it would confirm that it is single-wall piping from the LR Ceiling, to the Cap outside.

-Soupy1957

Why do you think it is single wall?

 

[oldspark]

Mine goes all the way up to the cap. (about 31 feet high)

Does that meet code?

 

[soupy1957]

OldSpark: because of what BLIMP said........

Doesn't make it "so" but.........

If it DON'T "meet Code," then the Installation Inspector from the professional outfit that installed it, and the Town Inspector have something to answer for!! They both approved the installation.

-Soupy1957

 

[oldspark]

Like what pagey said, no single wall class a, blimp did not say it was single wall (i dont think)

 

[soupy1957]

Naw, BLIMP said that the more "silver" looking piping is single wall. Isn't "Class A" a single wall product? My pipes in the LR are black, but the rest are silver.

-Soupy1957

 

[oldspark]

He said class a is silver, class a is not single wall

 

[vvvv]

Naw, BLIMP said that the more "silver" looking piping is single wall. My pipes in the LR are black, but the rest are silver.

-Soupy1957

read be4 u type, penius, class a is 2wall with insulation in between, duh

 

[soupy1957]

Oh.........didn't know that "Class A" was NOT single wall.........guess I misinterpreted his posting.........sorry.

-Soupy1957

 

[Pagey]

I would 99.99% guarandamntee you that you have double wall Class A, Soupy. Nothing to worry about. I think people get confused by connector/stove pipe being able to be single wall OR double wall. But, by default, Class A would have to be double wall at a minimum.

 

[soupy1957]

I just called the guys who installed our stove......they say that it has Class A Pipe above the LR, and out to the cap. He defined it this way:

Class A: Is "Galvalume" (must be a brand name, or Patent name) or S.S. outside, depending on which one we bought (and I don't recall which), and then 1" of insulation inside that, (I asked him what TYPE of "Insulation" and he couldn't tell me), and then inside THAT, there is ANOTHER layer of Stainless Steel piping.

-Soupy1957

 

[Pagey]

You're in good shape. Double wall from stove to daylight!