Aladdin Mantle Lamps (reprise?)

 I may have posted about this before, but if I did, it was a long time ago, and I got a couple questions about it from net-acquaintance, so here we go again, maybe. :)

 BTW, if anyone needs info on Aladdin mantle lamps, I've been studyin' on 'em for a while now.
I know have one, because DEAR GOD THEY ARE EXPENSIVE, ahem.

 Their value is that they are vastly brighter than regular wick lamps; on the order of a 60w incandescent
bulb, similar to a gas pressure (AKA Coleman, etc) lamp.  Because combustion is nearly 100%, they also emit much les odor vs. wick type lamps.

 In addition to being four or five times brighter than a regular wick lamp, they have four or five times lower fuel consumption, and four or five times great burn time, for a given amount of fuel, vs. regular wick lamps.

Let's be honest, you can't read by a wick lamp, they're just dismal.

The two, er three, er four most useful bits of arcane Aladdin knowledge which I have distilled from the mantle lamp boffins are this:

• For Denver and higher elevations, you must swap the standard chimney for a "MaxBright High
Altitude/High Output chimney". And that is simply a matter of there being less oxygen in a square
foot of air up here, than there is at sea level.  To get the mantle properly hot, a stronger draft of air
is required, and that's what that chimney does.  It makes a world of difference.  Not for use on
shelves, lol; the standard chimney is already tall - these things want a 4% fuel, 96% air mixture for
best operation.  The high output chimney is even taller.  The total height of my lamp is 26.5in.

• Antique Aladdin brand mantles, if you can find any, are better than any others. Ideally, the ones
from Brazil, because they had the most Thorium, IIRC.  Anyhoo, the balance of light-emitting salts
used in the mantle is different today vs. old mantles, because people were worried about manufacturing
workers being exposed to the Thorium dioxide ingredient, which is slightly radioactive.  The mantles
were never any danger to users.  They are brighter than newer mantles, and the quality of light (color
balance) is superior in the old mantles.  I have found old ones on etsy and ebay, but they are getting
harder to find.  Once burned, the mantles are just as fragile - or more so - than the mantles used in
pressure lanterns, so handle gently.

• fuel: K-1 kerosene (clear only). Do not use "odorless lamp oil" (paraffin oil) sold for wick lamps. It will soot up your mantle and destroy it in short order.  To make matters more confusing, Aladdin sells a
purified kerosene product they call "Aladdin Lamp Oil" which is NOT paraffin oil, and which some
people claim tends to smoke less.  I have not tried it because it costs more.  And um, well, if your lamp is smoking it is badly out of adjustment! (see document linked below)

• Aladdin Lamps carry a price for their bright light; they are the Italian sports car of the emergency
lighting world.  The lamp is slightly fiddly to light compared to a wick lamp, and then it takes ten or
fifteen minutes to warm up, during which time you have to keep an eye on the mantle, starting with
the vaporizing wick low, at first.  This is not terribly different from starting up a pressure lamp, it
just takes more time.

 A great treatise from Aladdin's service department, found in a letter to a customer in 1933, can be
found here:

https://aladdincollectors.org/wp-content/uploads/2025/02/Aladdin-Kerosene-Mantle-Lamps.pdf

I recommend downloading and printing out a copy.

I also recommend printing out every other emergency how-to resource you own, and binding them
if possible (staples and cheap plastic binders from office store seem fine) so you can access them
when the power has been out for say, a week, and your UPS is dead, and the nearest city is a smoking
crater, things like that.

PDF files are useless in a real emergency, and I just realized I have a ton of them.  Oops.  Sigh.