Coal Exhaust Rusting Nearby Oil Furnace Chimney
-
- Member
- Posts: 48
- Joined: Tue. Apr. 29, 2014 7:39 pm
- Hot Air Coal Stoker Furnace: Looking to buy one
Last year I installed a Keystoker Koker. Its been great. Unfortunately, it is causing rust to form on a nearby SS chimney for my oil furnace. Even though I haven't used the furnace since I started burning coal I do not want to destroy the chimney or have it covered in unsightly rust. At this point it still can be cleaned with steel wool. I have attached pictures. I am looking for ideas to help prevent future rusting of the SS chimney. My best Idea right now is to remove the coal vent top hat and put a 90 on it pointing away from the SS chimney.
- Lightning
- Site Moderator
- Posts: 14659
- Joined: Wed. Nov. 16, 2011 9:51 am
- Location: Olean, NY
- Stoker Coal Boiler: Modified AA 130
- Coal Size/Type: Pea Size - Anthracite
Wow... how far away is the exhaust of the coal appliance from the chimney? It appears to about like 6 feet, maybe 8. I'd be shocked if that is causing the corrosion.
What is that right next to it? A heat pump? Air conditioner? I'd sooner think that was the issue. Condensation?
What is that right next to it? A heat pump? Air conditioner? I'd sooner think that was the issue. Condensation?
-
- Member
- Posts: 48
- Joined: Tue. Apr. 29, 2014 7:39 pm
- Hot Air Coal Stoker Furnace: Looking to buy one
They are just over 6 feet apart. That is an AC unit. The cause is definitely the coal exhaust because I had no issues prior to the install.
- windyhill4.2
- Member
- Posts: 6072
- Joined: Fri. Nov. 22, 2013 2:17 pm
- Location: Jonestown,Pa.17038
- Stoker Coal Boiler: 1960 EFM520 installed in truck box
- Hand Fed Coal Stove: Crane 404 with variable blower
- Coal Size/Type: 404-nut, 520 rice ,anthracite for both
Why would the steel pipe 6' away rust,but the steel pipe that the coal gases exhaust out thru looks just fine?????
-
- Member
- Posts: 48
- Joined: Tue. Apr. 29, 2014 7:39 pm
- Hot Air Coal Stoker Furnace: Looking to buy one
I don't know. But its happening ever since I installed furnace. Its only surface rust and if you look at one part of pipe you see where I cleaned it fairly easily but I don't want it to continue to happen. Its been happening since I installed the coal furnace so it either the coal or the fact I don't use that chimney anymore. Everything else is the same. I this think its the coal exhaust because I hear it is very caustic.
-
- Site Moderator
- Posts: 11416
- Joined: Wed. Nov. 05, 2008 5:11 pm
- Location: Kent CT
- Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
- Baseburners & Antiques: Glenwood Modern Oak 114
- Coal Size/Type: nut and pea
Maybe paint the stainless chimney. Rustoleum barbecue paint, brush on stands up to weather very well.
-
- Member
- Posts: 48
- Joined: Tue. Apr. 29, 2014 7:39 pm
- Hot Air Coal Stoker Furnace: Looking to buy one
yea I thought of the high heat grill paint. I think that will be option 2. First I want to try to keep the chimney from being affected at all. I don't know if it will work but should it be safe to at least try a 90° elbow on top pointing away from chimney unless there is a better idea
- freetown fred
- Member
- Posts: 30293
- Joined: Thu. Dec. 31, 2009 12:33 pm
- Location: Freetown,NY 13803
- Hand Fed Coal Stove: HITZER 50-93
- Coal Size/Type: BLASCHAK Nut
You're not having a fly ash problem--age of stainless & stove install are just coincidental--crappy stainless--why aren't the wall brackets rusting also??? Why isn't AC unit rusting???
-
- Member
- Posts: 48
- Joined: Tue. Apr. 29, 2014 7:39 pm
- Hot Air Coal Stoker Furnace: Looking to buy one
good point about brackets not rusting. They are definitely not SS like the chimney. I should email chimney manufacturer.
-
- Site Moderator
- Posts: 11416
- Joined: Wed. Nov. 05, 2008 5:11 pm
- Location: Kent CT
- Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
- Baseburners & Antiques: Glenwood Modern Oak 114
- Coal Size/Type: nut and pea
If that is Metalbestos (Selkirk) they do honor their guarantee. Do not Email but telephone support.2004blackwrx wrote:good point about brackets not rusting. They are definitely not SS like the chimney. I should email chimney manufacturer.
- CoalCaptain
- Member
- Posts: 44
- Joined: Mon. Jan. 12, 2015 8:35 pm
- Location: America's Hometown
- Hand Fed Coal Stove: Chubby Sr. & Chubby Jr.
- Baseburners & Antiques: Century Andes # 26
- Coal Size/Type: Anthracite, Nut & Stove
- Other Heating: FHA Oil
Quality stainless piping absolutelly should not be rusting like that,
regardless of the cause. I have swimming pool ladders and railings that have been
outside for 21 plus years and they have no rust!! I think your piping is garbage...
regardless of the cause. I have swimming pool ladders and railings that have been
outside for 21 plus years and they have no rust!! I think your piping is garbage...
- Richard S.
- Mayor
- Posts: 15184
- Joined: Fri. Oct. 01, 2004 8:35 pm
- Location: NEPA
- Stoker Coal Boiler: Van Wert VA1200
- Coal Size/Type: Buckwheat/Anthracite
You have cleanout on the bottom where the T is? How does it look inside?
- oliver power
- Member
- Posts: 2970
- Joined: Sun. Apr. 16, 2006 9:28 am
- Location: Near Dansville, NY
- Stoker Coal Boiler: KEYSTOKER Kaa-2
- Hand Fed Coal Stove: Hitzer 50-93 & 30-95, Vigilant (pre-2310), D.S. 1600 Circulator, Hitzer 254
Apparently, the reason the exhaust is bothering the chimney is because the wind blows in that direction. MAYBE you can put a section of wooden stockade fence on a 45* angle, just behind the coal chimney, smooth side facing coal exhaust. When the wind blows, it will blow against the stockade fence, and deflect out around the stainless chimney. You may even put that elbow on you talked about, and point it parallel with the stockade fence. When the wind isn't blowing, fumes may not reach chimney. Or, extend your coal exhaust out further, BEHIND a stockade fence. This way it won't look so gaudy. You can put a deflector at the stainless chimney but, it'd most likely have to go all the way up. Just a little trouble shooting........
-
- Member
- Posts: 8601
- Joined: Sat. May. 24, 2008 4:26 pm
- Location: Chester, NY
- Hot Air Coal Stoker Stove: LL AnthraKing 180K, Pocono110K,KStokr 90K, DVC
- Hand Fed Coal Stove: Invader 2
- Baseburners & Antiques: Wings Best, Glenwood #8(x2) Herald 116x
- Coal Size/Type: Rice,
- Other Heating: Heating Oil CH, Toyotomi OM 22
I had the same issue with a iron 1/2" propane gas line about 10' from a powervent exhaust. In areas of very low wind this is an issue. I repainted the gas line and all is well but coal exhaust can be corrosive in the right circumstances.