200A and 202 reproduction
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in stock.

homesteader824
I just lit my NOS Bernzomatic 750 propane lantern for the first time this evening after installing and burning in a new Coleman 21 mantle.

There is an aura around the mantle like maybe it's getting too much gas.  The only way it doesn't is if the valve is just barely open.  It seems as bright on any setting--no adjusting the brightness to it.

This is the first time this lantern was used, and it has been in the box since manufactured.  I don't have any experience with Bernzomatics; that's part of the reason I bought a NOS so it would be problem-free.

Is a Coleman 21 the right size mantle for one of these?  I was kind of saving back the originals that came with it, which is why I didn't use the original.  I'm using a brand new Bernzomatic cylinder.  Anything else I should look at.

Also, the seller included a couple of new o-rings, but I don't see where they would be used.  Would they be to replace the cork gasket on the valve?  They aren't close to similar.

Sorry for all the questions, this is totally new to me.  Thanks for any help.

o ring.jpeg 
Rick

in the Missouri Ozarks

Looking for Dad's birthday lantern: 5-36
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salukispeed
Those little "O" rings might be small enough to seal the valve shaft in the body I know it is small.  
Bob
ICCC 1868
Perfection appreciation #10
Milspec 65252
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Majicwrench
Just keep the valve turned low. No worries.

Those little Orings are for the valve, they often leak.
Keith
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Tgarner01
Rick did your lantern come with an extra gas tip? I believe they had one for higher altitudes when new? Maybe I'm think of something else... 

Anyway hope you get it figured out from another member from the Missouri Ozarks ðŸ˜
Toby Garner
ICCC #1939
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Chucker
Toby is right, most if not all of those came with two jets when new. Might need the smaller jet. 

Look deep down inside the tank well for the extra jet but don't hold your breath. Turning the valve down can help but it will still over drive mantles. Yes, #21 Coleman mantle should work just fine. Sometimes a longer mantle like the Peerless 24a can capture more of the flame. 
Chuck
"...we also glory in our sufferings, because we know that suffering produces perseverance; perseverance, character; and character, hope" Romans 5:3-4
Eye-SEE-C-C Member #1333 -- MilSpecOps #003
"Michigan - from the Ojibwa word “meicigama,” meaning “great water.”
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homesteader824
Bernzomatic lantern 750-11.jpg 

Yes it came with an additional orifice.  I may try that, but it says it will result in using more fuel, which seems the opposite of what I'd want.  I also saw where some people use the larger Peerless 24-A mantles.  I may try that first.















Rick

in the Missouri Ozarks

Looking for Dad's birthday lantern: 5-36
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Tgarner01
Rick if you do remove your mantle, I would make sure the air tube is clean as well.. Not sure how it would've gotten something in it in a box but stranger things have happened
Toby Garner
ICCC #1939
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zoomkat
"Is a Coleman 21 the right size mantle for one of these?  I was kind of saving back the originals that came with it, which is why I didn't use the original. "

How do the two mantles compare in size before they are burned?
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Pancholoco1911
zoomkat wrote:
"Is a Coleman 21 the right size mantle for one of these?  I was kind of saving back the originals that came with it, which is why I didn't use the original. "

How do the two mantles compare in size before they are burned?
 
I have one that does the same, tried a #21 Colman mantle and the aura around mantle was big so tried a tried a 525 lighthouse mantle and it does performs better but not at full throttle, I still have to adjust the valve know to not get the outside mantle aura as you stated. 
~Pancho~
👀 for BD lantern  7/85, 10/04, 5/11, 2/19
BernzOmatic Appreciation Club #101
“Solo sé que no sé nada”
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MotorcycleDan
I have a couple of users. They all act the way yours is. You just need to turn down the fuel valve until the mantle is not being over driven. I have used Coleman #21's for years without any problems. They are just not designed to be run wide open. 
Dan ICCC #900
ICCC Treasure
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homesteader824
Thanks for all the help everyone.  I think the original mantles are about the same size as the #21. 

I think I'll remove the mantle (glad it's a cheap modern one; the reason why I chose it) and put on a Peerless 24-A.  While the mantle is off I'll clean it out just in case.  And if needed I may try out the high-altitude orifice and see how that works.
Rick

in the Missouri Ozarks

Looking for Dad's birthday lantern: 5-36
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Majicwrench
THe High alt one will make it worse.

 Like Dan and a few other said, just turn down valve. A lot of my propane stuff will overdrive with valve wide open, just close it down a bit.
Keith
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Tgarner01
00100lrPORTRAIT_00100_BURST20200527084909826_COVER_copy_1270x1693.jpg 
I run mine wide open with a 21 Coleman mantle... But it's far from NOS ðŸ˜
Toby Garner
ICCC #1939
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