Metalbestos Chimney Rusting?

Metalbestos Chimney Rusting?

PostBy: sterling40man On: Thu May 07, 2009 2:07 pm

Guys I hope you can help me with this. Below are some pics of my SS chimney. I can't believe all the rust that built up on it. :mad: The inside of the chimney is fine. The rust is only on the outside. I only burned 3,000 lbs of coal. This can't be normal. My chimney height is about 17 feet. What do you guys think? Let me know.
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sterling40man
 
Stoker Coal Boiler: Keystoker K6
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Re: Metalbestos Chimney Rusting?

PostBy: 009to090 On: Thu May 07, 2009 2:17 pm

Wow Bob, its hard to believe thats SS on the outside. Thats really knarley. I can suggest to spray it down with a "Rust Converter" product, then a good coat of Stove Bright to save it.
I painted mine right after I installed it, and its in perfect shape.
009to090
 
Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice

Re: Metalbestos Chimney Rusting?

PostBy: KLook On: Thu May 07, 2009 2:47 pm

I have burned coal for about 5 years in mine and it is not even slightly rusty. I think you have a defective piece. Selkirk makes several different kinds of SS chimney and not all them are rated for coal. Check to see what the rating is on the label. You may have to go back to the retailer to find info on the ratings.

Kevin
KLook
 
Stoker Coal Boiler: Harman VF 3000
Coal Size/Type: rice, bagged, Blaschak
Stove/Furnace Make: Harman (Back In Maine)
Stove/Furnace Model: VF 3000


Re: Metalbestos Chimney Rusting?

PostBy: sterling40man On: Thu May 07, 2009 3:12 pm

I began to notice the color change from the ground after 2 weeks of burning (mid Feb). I went up on the roof and noticed the outside of it was covered in some kind of oily residue. When I touched it and rubbed my finger and thumb together it felt oily, kind of like 3 in 1 oil. :?

I looked at the labels on it. It says for gas or oil fired heating appliances not to exceed 540* C.
sterling40man
 
Stoker Coal Boiler: Keystoker K6
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Re: Metalbestos Chimney Rusting?

PostBy: KLook On: Thu May 07, 2009 3:14 pm

I think it is supposed to say it is rated for wood/coal. Check the retailer to see if they sold you something inferior.

Kevin
KLook
 
Stoker Coal Boiler: Harman VF 3000
Coal Size/Type: rice, bagged, Blaschak
Stove/Furnace Make: Harman (Back In Maine)
Stove/Furnace Model: VF 3000

Re: Metalbestos Chimney Rusting?

PostBy: KLook On: Thu May 07, 2009 3:18 pm

Mine is Metalbesto's II from what I can remember. It is the only one I install for anyone because it is the only one stocked in this area.

Kevin
KLook
 
Stoker Coal Boiler: Harman VF 3000
Coal Size/Type: rice, bagged, Blaschak
Stove/Furnace Make: Harman (Back In Maine)
Stove/Furnace Model: VF 3000

Re: Metalbestos Chimney Rusting?

PostBy: Razzler On: Thu May 07, 2009 3:41 pm

Are you sure it's not just red fly ash stained? The fly ash will stick to anything that gets wet.
Razzler
 
Hand Fed Coal Stove: Harman SF 250

Re: Metalbestos Chimney Rusting?

PostBy: sterling40man On: Thu May 07, 2009 4:07 pm

Razzler wrote:Are you sure it's not just red fly ash stained?



Definately rust. Even smells like it.
sterling40man
 
Stoker Coal Boiler: Keystoker K6
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6

Re: Metalbestos Chimney Rusting?

PostBy: SMITTY On: Thu May 07, 2009 7:25 pm

Razzler wrote:Are you sure it's not just red fly ash stained? The fly ash will stick to anything that gets wet.


I was thinking the same thing -- it almost looks like a coating in the pics. You could try rubbing it down with steel wool just to be sure it really is rust -- the smell could be from inside the chimney.

If that is rust, it's only surface rust -- it won't cause any structural issues unless it becomes perforated ..... like a mid-80's chrome bumper in northern New England. Looks minor ( as far a rusting goes ) from what I can see, but I can understand being pissed as far as appearance goes. But it doesn't make sense that a SS chimney would rust that fast -- that's why I think it might just be a heavy staining -- ???
SMITTY
 
Stoker Coal Boiler: Patriot Coal - custom built by Jim Dorsey
Hand Fed Coal Stove: Harman Mark III (not currently in use)
Coal Size/Type: Rice / Blaschak anthracite
Other Heating: Oil fired Burnham boiler

Re: Metalbestos Chimney Rusting?

PostBy: Razzler On: Thu May 07, 2009 9:33 pm

sterling_40man wrote:I can't believe all the rust that built up on it

If you have the 430 grade it will rust.


Some stainless steel products are made from Grade 430, which is less expensive than Grade 304. Grade 430 will rust and is not nearly as durable as Grade 304. Manufacturers who use Grade 430 may not disclose it but it is easy to tell the difference. Grade 304 stainless steel in non-magnetic. If a magnet sticks to stainless steel - it will rust!
Note: There are a few places on the LX where a magnet will stick because of its galvanized steel inner structure.
Last edited by Richard S. on Wed Nov 27, 2013 1:31 am, edited 1 time in total.
Reason: <removed dead link>
Razzler
 
Hand Fed Coal Stove: Harman SF 250

Re: Metalbestos Chimney Rusting?

PostBy: 009to090 On: Thu May 07, 2009 10:19 pm

My owners manual called for Type "L" pipe. According to the above chart, it has a GALVALUME STEEL outer skin. But it sure didn't rust like the above pics, maybe thats cause I painted it, and the cap I got is 316 SS.
009to090
 
Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice

Re: Metalbestos Chimney Rusting?

PostBy: e.alleg On: Thu May 07, 2009 10:28 pm

your pics made me feel panicky, I am afraid of heights. Guess that's why I'm not a roofer. :(
e.alleg
 
Stove/Furnace Make: EFM
Stove/Furnace Model: 520

Re: Metalbestos Chimney Rusting?

PostBy: 009to090 On: Thu May 07, 2009 10:30 pm

Nice roof, BTW... Timberlines? 40 year Warrenty? Thats what I put on my house. :D
009to090
 
Stoker Coal Boiler: EFM 520 HighBoy
Hot Air Coal Stoker Stove: DVC-500 x 2
Coal Size/Type: Anthracite Rice

Re: Metalbestos Chimney Rusting?

PostBy: rockwood On: Thu May 07, 2009 11:53 pm

I'm thinking the chimney cap may be the culprit.?
Looks like it is rusting and running down the outside of the pipe from cap.
The inside of the chimney is fine
The rust wouldn't run down the inside of the chimney because of the cap curved shape. Look at the photo looking into the cap laying on the roof, looks rusted and the photo looking down at the roof jack/flashing and shingles, looks like rust has been dripping straight from the cap.
rockwood
 
Hot Air Coal Stoker Furnace: Stokermatic coal furnace
Hand Fed Coal Stove: Rockwood Stoveworks Circulator
Baseburners & Antiques: Malleable/Monarch Range
Coal Size/Type: Soft coal: Lump and stoker (slack coal)

Re: Metalbestos Chimney Rusting?

PostBy: sterling40man On: Fri May 08, 2009 3:43 pm

DVC500_at_last wrote:Nice roof, BTW... Timberlines? 40 year Warrenty? Thats what I put on my house. :D


Thanks Chris. It's IKO Cambridge, charcoal grey. 30 year. Same as the house. I built my garage in 2007. My house roof was done in 2000. When I built the garage I was afraid that there would be a color difference (fading of the house shingles). Not at all! Their is no difference. Even after seven years, it looks like they were roofed at the same time. :D


http://www.iko.com/products/residential/residential.asp?product_id=69&region_id=9&task=ProductDetailsColours
This link is broken, either the page no longer exists or there is some other issue like a typo.




rockwood wrote:I'm thinking the chimney cap may be the culprit.?


Could very well be.



Some stainless steel products are made from Grade 430, which is less expensive than Grade 304. Grade 430 will rust and is not nearly as durable as Grade 304. Manufacturers who use Grade 430 may not disclose it but it is easy to tell the difference. Grade 304 stainless steel in non-magnetic. If a magnet sticks to stainless steel - it will rust!
Note: There are a few places on the LX where a magnet will stick because of its galvanized steel inner structure.


Looks like I have some investigating to do.
sterling40man
 
Stoker Coal Boiler: Keystoker K6
Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6