uh oh, did I damage my oslo or....

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mikepinto65

Minister of Fire
Hearth Supporter
Nov 5, 2008
684
Webster, MA
is this just excess cement from manufacturing???? My stove top has only seen 600 once or twice so I think this is just left over junk, please let meknow what you think!
 

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600 degrees is within normal operating temp - so no damage from that. looks like the assembler went heavy on the cement and now the excess is simply falling away. i bought my oslo used - so hopefully some new owners will comment.
 
Mikepinto65,

It looks to me to be excess cement. I just checked the same location on my Oslo and in comparison it appears as if yours has a lot of excess cement that has "squooze out" from in between the cast plates and has merely fallen off. The "groove" between the plates on mine has almost no cement in it. If you check closely, you will very likely see that the cement seal between the plates is still intact. Personally, I wouldn't worry about 600*. In any case, a couple of runs up to 600* shouldn't harm anything on these stoves. I've seen 600* surface temps on all three of the Jotuls I've owned (see sig. plus a Castine) and never had any damage. My preferred cruising range is in the 400-500* range though and I try not to operate them above 500*. JMO. If you're still concerned after examining the stove, fire it up and see if your normal damper positioning relative to normal firing temps has changed (e.g. are you getting more draft than previously and therefore running hotter).
 
My new Oslo has similar excess cement in various places. Mine even had a few chunks in the firebox that were obviously just excess from sloppy application that I removed before installation.

Based on my burning experience I don't think you're pushing the temp limit at 600.

Did you remove your stove to address this problem? It looks like its sitting in a storage space (sorry if that's your living room :)) I've read elsewhere, and it makes sense, that you should minimize moving a cast iron stove once its broken in.
 
Ain't no problem.

I have some rutland stove cement on hand if I need it. In the off season I've gone inside the stove and dug out some loose stuff like in your pics and re-cemented, no big deal.

edited to add "burn that puppy" :)
 
The guys are right again. Also the book states 400 to600 to be the optimum surface temperature range for the most efficient burn. No problems there. Be safe, may all your wood be dry.
Ed
 
Thanks for the responses, I am well aware the the Oslo can go to 600 (even 650) with no problems....I just havnt had to push that high as we are in mild weather and was trying to save the question of overfire ;-)

Semipro: No its not storage space, it is my basement where the beast is located. Project for this winter is finishing it to a walk-in mud room with walls, slate flooring, possibly a hearth. You can be sure I will have pictures once the project starts.

Thanks again everyone!
 
mikepinto65 said:
Thanks for the responses, I am well aware the the Oslo can go to 600 (even 650) with no problems....I just havnt had to push that high as we are in mild weather and was trying to save the question of overfire ;-)

Semipro: No its not storage space, it is my basement where the beast is located. Project for this winter is finishing it to a walk-in mud room with walls, slate flooring, possibly a hearth. You can be sure I will have pictures once the project starts.

Thanks again everyone!

Okay, we'll hold you to the promise of photos. We love to see them.
 
I just found a piece of cement like yours on my hearth today also. Good to know it's not a big deal.
 
Peter SWNH said:
I just found a piece of cement like yours on my hearth today also. Good to know it's not a big deal.

Ha, good thing I posted. Made my face turn red and my stomach drop when I first saw it! I've already established a lasting connection to the Oslo so it would have broken my heart to know I F'ed up my 1800 dollar investment!
 
mikepinto65 said:
Peter SWNH said:
I just found a piece of cement like yours on my hearth today also. Good to know it's not a big deal.

Ha, good thing I posted. Made my face turn red and my stomach drop when I first saw it! I've already established a lasting connection to the Oslo so it would have broken my heart to know I F'ed up my 1800 dollar investment!
No worries had a couple of pieces like that in mine, too.
 
All the Jotul wood stoves are assembled & shipped from Norway,
they're not assembled here
That's just sloppy and careless assembly of a product that costs good money.
Back in the day I rebuilt a LOT of VC wood stoves & if I let one of them go
out of our repair shop all goobed up with furnace cement like that my
boss or the owner would've had a Sh*t fit.
That stuff is water soluble when it's still wet & a wet sponge or
a paper towel will clean all the excess from where it's oozed out
of the assembly grooves.
Maybe the Norwegian assemblers are getting paid by volume, not quality...
 
"Almost" all the Jotul stoves are assembled in Norway. Isn't the Rangeley assembled in Maine? Not sure about the inserts.
 
I wouldn't worry about the piece of cemment unless you think it has caused an air leak. At 600 degrees it will take you a LONG TIME to damage your stove. I had a Surdiac that was made in Belgium, great stove in the 80's and early 90's. However, the seams that had oozed out were not cleaned up and ended up falling in and out of the stove. It had a tin body that covered the cast iron core. In fact, Surdiac was bought out by Jotul in the 90's, but the line was later discontinued as the oil prices fell and the economy picked up. Your Jotul's seams are pretty well smoothed out though! Burning your stove at 600's top temp, that thing will last forever. BTW, after his visit of Vermont Castings manufacturing plant, here's what Jay Clarks from Clark's Ace Hardware had to say:
I think you guys would also find it interesting that VC is now doing all of Jotul’s north american castings in Vermont.
https://www.hearth.com/talk/threads/66655/
(where the quote came from)
 
VC has been doing castings for several stove companies for years. It's a good foundry. I hope they keep it busy.
 
I believe as of Jan 1 2011 all Jotul stoves are cast at VC and built near by, by trained jotul personal. I waiting to see if there is any effect on quality.
 
skinanbones said:
I believe as of Jan 1 2011 all Jotul stoves are cast at VC and built near by, by trained jotul personal. I waiting to see if there is any effect on quality.
Are you saying the people in Vermont can't build a product that is just as good as the product from Norway?
 
VCBurner said:
skinanbones said:
I believe as of Jan 1 2011 all Jotul stoves are cast at VC and built near by, by trained jotul personal. I waiting to see if there is any effect on quality.
Are you saying the people in Vermont can't build a product that is just as good as the product from Norway?

Oh jeez....Looks like he's waiting to see lol.....
 
mikepinto65 said:
VCBurner said:
skinanbones said:
I believe as of Jan 1 2011 all Jotul stoves are cast at VC and built near by, by trained jotul personal. I waiting to see if there is any effect on quality.
Are you saying the people in Vermont can't build a product that is just as good as the product from Norway?

Oh jeez....Looks like he's waiting to see lol.....

I was just wondering, I think the people in this country can still produce some of the best products in the world. Thanks for the info skinandbones. We need more jobs in the US and Jotul is giving us what we need, I hope it turns out to be profitable and the quality is kept the same. If there's any company that can keep quality one of the most important aspects it would be them.
 
VCBurner said:
mikepinto65 said:
VCBurner said:
skinanbones said:
I believe as of Jan 1 2011 all Jotul stoves are cast at VC and built near by, by trained jotul personal. I waiting to see if there is any effect on quality.
Are you saying the people in Vermont can't build a product that is just as good as the product from Norway?

Oh jeez....Looks like he's waiting to see lol.....

I was just wondering, I think the people in this country can still produce some of the best products in the world. Thanks for the info skinandbones. We need more jobs in the US and Jotul is giving us what we need, I hope it turns out to be profitable and the quality is kept the same. If there's any company that can keep quality one of the most important aspects it would be them.

Sorry, just came off differently to me! I agree, I think this country can still produce the best quality products in the world.
 
Hey gang! We are doing 75% of the product line now in the states. We do source our cast for those products at VC. We both use the same equipment to process the cast. They poor in our molds and ship it to Gorham, Maine. We do all assembly and sheet metal work that may need to be done at that point. The only products coming from Norway as of right now are the cast free standing stoves. Hope that clears up all the confusion.
 
Good grief folks. The Jotuls have been assembled in Gorham for years now.

Lots of years.
 
jotulguy said:
Hey gang! We are doing 75% of the product line now in the states. We do source our cast for those products at VC. We both use the same equipment to process the cast. They poor in our molds and ship it to Gorham, Maine. We do all assembly and sheet metal work that may need to be done at that point. The only products coming from Norway as of right now are the cast free standing stoves. Hope that clears up all the confusion.

Any comments on the cement issue the OP noted? Anything to be concerned about? Thanks for posting.
 
No worries about the cement. I too wish we did a better job of making it neat though. There was an issue about 9 years back where there wasnt enough cement. Their answer was to over fill the grooves and let it push out. It seemed like a great way to be sure of proper cement but from time to time it does get over done. It should be easy to remove as noted earlier from the outer portion of the stove. The inner portions will still have plenty of cement for proper operation.
 
jotulguy said:
No worries about the cement. I too wish we did a better job of making it neat though. There was an issue about 9 years back where there wasnt enough cement. Their answer was to over fill the grooves and let it push out. It seemed like a great way to be sure of proper cement but from time to time it does get over done. It should be easy to remove as noted earlier from the outer portion of the stove. The inner portions will still have plenty of cement for proper operation.

Thanks, this thread is almost 2 years old now. Im not sure how it was resurrected.
 
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