It is currently Tue Jun 27, 2017 12:25 am

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Tue Dec 18, 2012 5:41 am 
Offline
*
User avatar

Joined: Fri Mar 09, 2012 4:46 am
Posts: 94
Location: United States
Has thanked: 0 time
Been thanked: 0 time
http://www.armysurpluswarehouse.com/sur ... g-pad.html

Image

Anyone know what's in there that allows it to be reused without end?

I'm not sure how hot these get but if they heat up to a reasonable temperature, this would most definitely replace MRE chem heaters in my BoB.


Share on FacebookShare on TwitterShare on TumblrShare on Google+
Top
 Profile  
Reply with quote  
PostPosted: Tue Dec 18, 2012 6:43 am 
Offline
* * * * *
User avatar

Joined: Wed Oct 19, 2011 2:37 pm
Posts: 6363
Location: Outside of your jurisdiction officer
Has thanked: 32 times
Been thanked: 51 times
Reread section 4. It's not unlimited.

Sent using secret methods known only to squirrels.

And selected hamsters.

_________________
There's always a certain percentage of any population with the conviction that society is a conspiracy to deny them their rights.
The right to be totally ignorant of any useful knowledge seems to be the basic one.
- Keith Laumer


Image


Top
 Profile  
Reply with quote  
PostPosted: Tue Dec 18, 2012 11:08 am 
Offline
* * * * *
User avatar

Joined: Fri Aug 27, 2010 6:01 pm
Posts: 7732
Has thanked: 131 times
Been thanked: 244 times
I carried those in my medic bag - they work like da bomb!

After adding water, it will get hot (helloooo warm sleeping bag) and once cooled, you will feel a lump where the chemical is used up.

The amount of water is the driver on the number of times you can use the pack.

If you are using these, wrap in a towel or other cloth, check the area heated often and DO NOT sleep on them, they will get hot enough to cause a thermal burn.

Besides heating my bag, they were good for field treatment of marginal hypothermia, folks with sore backs from humping a ruck all day and so on. They also weigh a lot, so keep that in mind when comparing to multiple packs of 'Hot Hands' or other heat products.

In the end, I went with a pair of those charcoal powered hand warmers....

_________________
TacAir - I'd rather be a disappointed pessimist than a horrified optimist
**All my books ** some with a different view of the "PAW". Check 'em out.
Adventures in rice storage//Mod your Esbit for better stability


Last edited by TacAir on Wed Dec 19, 2012 5:30 pm, edited 1 time in total.

Top
 Profile  
Reply with quote  
PostPosted: Tue Dec 18, 2012 1:28 pm 
Offline
*

Joined: Sun Jan 08, 2012 5:39 pm
Posts: 70
Has thanked: 0 time
Been thanked: 0 time
I have a pair of zippo hand warmers and they work great


Top
 Profile  
Reply with quote  
PostPosted: Wed Dec 19, 2012 5:21 pm 
Offline
*
User avatar

Joined: Tue Nov 15, 2011 6:07 am
Posts: 53
Location: Massachusetts
Has thanked: 3 times
Been thanked: 3 times
Found a similar one 2 years ago. Paid $2.00(?) for it at the local flea market.
Never used it, just put it in a medical bag. (I was collecting at the time.)

Image

Image

Never done any research on it, but it appears to be Korea(?) or Vietnam(?) era.


Top
 Profile  
Reply with quote  
PostPosted: Wed Dec 19, 2012 7:51 pm 
Offline
* * * * *
User avatar

Joined: Fri Jan 11, 2008 11:46 am
Posts: 5767
Location: Virginia
Has thanked: 66 times
Been thanked: 28 times
I have the German military equivalent, look and work the same, just stamped with instructions in german. I bought a 12 pack of them years back... a couple were duds, but the rest got plenty hot. I still have them, but haven't used any recently.

_________________
Does your BOB at least have: water, basic tools, fire, food, first-aid kit, and shelter?
"When planning, prepare for the most likely, and then the most catastrophic."
raptor wrote: Being a gun collector does not make you a prepper.
the_alias wrote: Murph has all the diplomacy of a North Korean warhead, but -he has- a valid point


Top
 Profile  
Reply with quote  
PostPosted: Fri Jun 16, 2017 1:42 pm 
Offline
* * * * *
User avatar

Joined: Fri Aug 27, 2010 6:01 pm
Posts: 7732
Has thanked: 131 times
Been thanked: 244 times
Jane Simmons wrote:
In case there is someone interested in modern heating pads, I would recommend the Sunbeam 731-500 Heating Pad with Ultra Heat Technology. I use it every month for relief, so I am sure it can work on other pains too. I saw a review of it recently http://toponlinereviews.com/


Poor Jane "the SPAMMER" Simmons. The product, to be worth anything, shouldn't have to have grid power.....

I wonder how much she gets paid for each post/link used? I could use some extra dough.....

_________________
TacAir - I'd rather be a disappointed pessimist than a horrified optimist
**All my books ** some with a different view of the "PAW". Check 'em out.
Adventures in rice storage//Mod your Esbit for better stability


Top
 Profile  
Reply with quote  
PostPosted: Sat Jun 17, 2017 8:48 am 
Offline
* * *

Joined: Wed Mar 20, 2013 8:56 am
Posts: 438
Has thanked: 14 times
Been thanked: 31 times
There is also one that you use and then boil to reset it.

https://youtu.be/zNRk7z7UCGQ


Top
 Profile  
Reply with quote  
PostPosted: Mon Jun 19, 2017 9:07 pm 
Offline
* * * * *
User avatar

Joined: Sat Feb 21, 2009 6:54 pm
Posts: 5888
Location: VA
Has thanked: 0 time
Been thanked: 80 times
drop bear wrote:
There is also one that you use and then boil to reset it.

https://youtu.be/zNRk7z7UCGQ


We have a bunch of these types of heat packs from various companies and we like them a lot. They are generally the size of pocket warmers, but I have seen some larger ones. You snap them and crystals form. Squish it about a bit and the whole thing heats up. Over time it will lose its heat and begin to cool. You can boil them back to a liquid state to have for the next time you need them. The only problem we have had with them is that some brands use cheap materials and will begin to leak over time and won't work anymore. Check for the higher rated ones on Amazon to avoid that. The cheapo ones we got were from a gun show.

Snap heaters on Amazon

The other "off grid" heaters we like are the Thermacare neck and back wraps you can get at just about any pharmacy and even at Walmart. They are one-time use, but I find they last a long time and work well. They work via exothermic reaction to air, so begin to heat up as soon as you open the individual wrapper.

As for the original question, I suspect the components of these packs are the same as in MRE heaters but in different quantities. If the chemical components deteriorate or are consumed slowly it may dry within a period of time to allow enough of the components to remain for multiple uses. If you overfill them, the excess water is likely to consume or deteriorate the chemical components more than desired, reducing its effectiveness or times of use. The same sort of thing happens if you add too much water to an MRE heater.

_________________
Feed science, not zombies!

Failure is the path of least persistence.

“People had more than they needed. We had no idea what was precious and what wasn't. We threw away things people kill each other for now.” ~Book of Eli

∩(=^_^=)


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group