Anyone used heat packs in their bag?

[MuleyFever]

Pushing the limits of my bag. Wondering if anyone has tried throwing a couple hand warmers in their bag? How did it work? I thought I saw a thread on t his but cannot find it.

 

[Sverimerica]

One thing that helps me, is to fill a nalgene with boiling water and throw that in the bag before sleeping.

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[JP100]

Hand warmers are a waste of space in a pack.
The nalgene hot water trick works great, The clear plastic ones handle boiling water the best, the other ones get all soft an munted.
A good liner is the best way to boost a bags warmth

 

[mallacootasmoothie]

I've done the nalgene and hot water thing. Especially if my feet are cold when hopping in, it's very nice! I find the 500ml bottle perfect.

 

[Sverimerica]

Hand warmers are a waste of space in a pack.
The nalgene hot water trick works great, The clear plastic ones handle boiling water the best, the other ones get all soft an munted.
A good liner is the best way to boost a bags warmth

Liner also. I haven't seen alot of talk about liners on here, but they definitely help for warmth, as well as for taking care of the bag- just wash the liner instead of abusing the bag in the washing machine

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[rayporter]

at 10,000 ft the large hand warmers will run a long time. in the bag they dont put out a lot of heat but they do get warm and can be carried the next day with some residual heat until noon. sometimes they shut down completely from lack of oxygen.

 

[mtnwrunner]

One thing that helps me, is to fill a nalgene with boiling water and throw that in the bag before sleeping.

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Been doing the hot water with a Nalgene bottle for many years. There is nothing like climbing in a bag that is nice and toasty. I just put the bottle in a lightweight wool sock and throw it in the bottom of the bag about 10 minutes before climbing in. I will actually be still warm in the morning so you can get a start with your coffee.

Randy

 

[oldgoat]

Having the bag warm before you crawl in goes a long way for being comfortable. My wife tried the hand warmers last year with little success. This year we ran the wood stove every night and she had a warm bag to crawl into and it helped her a lot. I'd probably go with the nalgene bottle if I was you, more reliable,i think there just wasn't enough oxygen available for the hand warmers and they aren't light to carry in a good supply of. If you still want to try them, I think the ones designed to go in your shoes work better in low oxygen environments.

 

[stephen b]

I have used the Nalgene bottle trick for years; and my wife swears by it. It is still somewhat warm in the AM- especially when put inside a wool sock.

Before I used the Nalgene bottles I used to grab a rock out of a fire (if I had one going) and let it cool for just a bit- enough so you could grab it quick and stuff it in a wool sock. That hot rock would keep the bag and you warm for a long time.

An old timer taught me that trick on a river fishing trip.

 

[Stid2677]

I use Thermacare heat wraps, they are for a bad back, just a very large heat pad. They stay hot for about 12 hours. I use them to keep me warm in my bag on cold nights, for glassing, for stand hunting, snow machine riding. During the winter in Alaska I will use 2, one on my back and the other over my stomach. Allows me to sit while predator hunting, the front one keeps my hands warm when I put my hands in my front jacket pocket.

 

[AdamW]

Yes sir. A hot hands in the bottom of my bag made my sleep a lot more comfortable in CO this year. Well worth the weight IMO. I just buy the 10 pack of the regular sized ones from the big box store and throw one down in the foot box of my bag.

 

[MIKEYB]

I have used them with success above 10000ft. Set up camp, take out of the package, shake, let it breath for a minute then pop in the bottom of my bag. I have had to put them in a sock they can get so hot. Helps with cold feet. I try to use freshly bought packs as I have had some old stored packs not work.

This is with a lightly rated bag and liner. I usually pack 1 for each night.

Not sure how this would play out in a late season scenario, I would still pack them, but would probably push for a better bag or maybe a overquilt/woobie?

Have not had to resort to warm Nalgene although I always have one.

 

[Luked]

pretty neat trick with the Boiling water in the Nalgene ill have to remember that

 

[ozyclint]

sure glad i had some hot hands in my first aid kit after getting a flooded tent resulting in a sodden down bag. fetal position with a hot hands got me through a -8C night.

 

[TheCougar]

Hand warmers work in the bag, if you use the big ones. The hot water bottle works like a champ too, although it will not keep you warm all night. The bottle will cool off after a few hours.

 

[Elkfitness]

I would make sure your pad is maxed out with R value as well. Before I upgraded bags, I would wear my heavy under wear as well. One time I threw my puffy over the top too

 

[yardwork]

what about Reflectix?

Has anyone tried adding reflectix to their system? I've cut a few pieces but not used them myself yet. My son and his buddies have put them under their bags when sleeping on the basement concrete floor and said it helped. I think it adds minimal R value (1.1 maybe) in that type of application but the radiant effect is what I think would be the biggest benefit. If I go out winter camping this year I'm throwing it in the pulk.

 

[Sverimerica]

Has anyone tried adding reflectix to their system? I've cut a few pieces but not used them myself yet. My son and his buddies have put them under their bags when sleeping on the basement concrete floor and said it helped. I think it adds minimal R value (1.1 maybe) in that type of application but the radiant effect is what I think would be the biggest benefit. If I go out winter camping this year I'm throwing it in the pulk.

Off topic, but you have an awesome name.

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[ben h]

X10 on the Nalgene with boiling water. One time with a crappy bag and an early spring backpacking trip, I put one in before bed and I woke up freezing my ass off in the middle of the night and had to re-boil the water.

 

[ianpadron]

I use Thermacare heat wraps, they are for a bad back, just a very large heat pad. They stay hot for about 12 hours. I use them to keep me warm in my bag on cold nights, for glassing, for stand hunting, snow machine riding. During the winter in Alaska I will use 2, one on my back and the other over my stomach. Allows me to sit while predator hunting, the front one keeps my hands warm when I put my hands in my front jacket pocket.

That's brilliant

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