8 posts • Page 1 of 1
- Posts: 171
- Joined: Wed. Jan. 25, 2006 4:05 pm
- Location: NE PA
- Hot Air Coal Stoker Stove: Alaska Kodiak Stokerstove 1
End of season my cap gets removed, washed off and stored in the shed. Fabricated a cover to put in it's place to keep birds, etc out of chimney. Managed to get 15 years, possibly more, out of a regular painted steel cap using this method. Replaced that old cap with a stainless one. We'll see how long that one lasts.
- Posts: 840
- Joined: Wed. Aug. 28, 2019 1:54 pm
- Location: NEPA
- Hand Fed Coal Stove: Glacier Bay
- Coal Size/Type: nut
- Other Heating: electric
As Rob R says, the proper stainless is important. I had a heavy duty stainless cap fabricated 30 years ago at a shop. Didn't last all that long. Must of been the wrong kind. I have had Metalbestos stove pipe that was coal rated go bad also so I steer away from all stainless components with coal now generally.
- Posts: 663
- Joined: Fri. Jan. 11, 2008 4:27 pm
- Location: Wernersville pa
- Stoker Coal Boiler: efm 520 stoker fitzgibbons pressure vessel
- Hand Fed Coal Stove: harman, russo
- Coal Size/Type: rice
- Other Heating: alpine propane condensing boiler radiant floor
Rockwell chimney supplies on line they sell 316 ti flex pipe, but i think the caps are only 316 with out the ti My cap is 10 years old while discolored it is still structurally sound
- Posts: 6429
- Joined: Mon. Apr. 16, 2007 9:34 pm
- Location: Central Maine
- Hand Fed Coal Stove: DS Machine 1300 with hopper
- Coal Size/Type: Blaschak Anthracite Nut
- Other Heating: Oil hot water radiators (fuel oil); propane
My cap was not 316 anything, and was chock full of pin holes after about 10 years of coal.
My Selkirk chimney pipe is not 316, either, and has started to disintegrate after 16 years. I replaced one section this year. The rest is still usable, outer shell is still OK, inner liner is getting tender.
- Posts: 1472
- Joined: Tue. Feb. 07, 2012 8:49 am
- Location: Clarksburg, ohio
- Hot Air Coal Stoker Stove: combustioneer model 77B
- Coal Size/Type: pea stoker/Ohio bituminous
I have fabricated and machined 304ss and 316ss, 316 is a bit more expensive than 304 but it's really not that much different both will rust if exposed to high heat, oxygen, acidity an moisture.