Ceramic Blanket for Jotul 118B
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I think it's mineral wool? but am not sure. It does have a purpose I would guess for keeping the coal bed hotter and perhaps less radiating towards the floor?
![[Hearth.com] Ceramic Blanket for Jotul 118B](/talk/data/attachments/8/8792-451d1f9b93f530bba5b3be2e4b49bb07.jpg?hash=groyGefbVl)
It is ceramic fiber blanket. Jotul now uses it between the side burn plates and the cast sides of the stove. Pretty cheap in 25' rolls on eBay. But you don't need 25'.
Look in the phone book for kiln supplies. Those guys have it.
Look in the phone book for kiln supplies. Those guys have it.
I swear the 118 I have only has the blanket on top of the baffle........there is no bottom burn plate near as i can tell......Odd?
The older units had it under the bottom burn plate. In my old 602 it seemed a lot more like mineral wool, but perhaps the years and metal oxides had colored it so. I would think that most modern ceramics would work just fine though.
Ahhh gotcha. I can confirm that the new ones don't have it! haha.
I'd say any ceramic Refractory blanket insulation will do. If you're looking to replace what's currently there, small pieces of Kaowool are almost always available on Ebay.
I'd say any ceramic Refractory blanket insulation will do. If you're looking to replace what's currently there, small pieces of Kaowool are almost always available on Ebay.
Sorry to dredge up an old thread, but I'm in a very similar situation.
I have an old Jotul Model 8 (draft wheel in door, no cat), and a bunch of leftover ceramic blanket liner insulation (1/2" thick). The 8 has burn plates on the bottom, back, and sides, and I was thinking of exactly what you guys are discussing, insulating between the burn plates and the outer walls, with the idea of keeping things a little hotter in the firebox for better combustion.
Only reason I haven't done it yet is that this would obviously increase the operating temperature of the burn plates by quite a bit. Plus I notice, on the Model 8 anyway, that the draft wheel is actually setup to supply cold air *under* the bottom burn plate, as if they (perhaps) wanted to keep it cool. (Or maybe they just wanted to keep the bottom of the stove cool for clearance purposes.)
Anyway, is there any reason to worry about these cast iron burn plates running too hot? I guess if the factory supplied insulation behind similar plates on later model stoves... and above the baffle for that matter, which must run really hot... there must not be a big issue, either with oxidation or with cracking. I've seen old fire grates, that live right in the fire, look pretty sagged and eroded after a few years. I'd hate to mess up any of these very nicely made cast iron parts... plus, replacements look to be pretty pricey.
regards,
Eddy
I have an old Jotul Model 8 (draft wheel in door, no cat), and a bunch of leftover ceramic blanket liner insulation (1/2" thick). The 8 has burn plates on the bottom, back, and sides, and I was thinking of exactly what you guys are discussing, insulating between the burn plates and the outer walls, with the idea of keeping things a little hotter in the firebox for better combustion.
Only reason I haven't done it yet is that this would obviously increase the operating temperature of the burn plates by quite a bit. Plus I notice, on the Model 8 anyway, that the draft wheel is actually setup to supply cold air *under* the bottom burn plate, as if they (perhaps) wanted to keep it cool. (Or maybe they just wanted to keep the bottom of the stove cool for clearance purposes.)
Anyway, is there any reason to worry about these cast iron burn plates running too hot? I guess if the factory supplied insulation behind similar plates on later model stoves... and above the baffle for that matter, which must run really hot... there must not be a big issue, either with oxidation or with cracking. I've seen old fire grates, that live right in the fire, look pretty sagged and eroded after a few years. I'd hate to mess up any of these very nicely made cast iron parts... plus, replacements look to be pretty pricey.
regards,
Eddy
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