Hand warmers

[DonDino]

I wonder if anyone's come across these:

https://www.amazon.co.uk/dp/B000MU4IJ2/?tag=hydra0b-21&hvadid=9557926269&ref=asc_df_B000MU4IJ2

I happened to see them at Selfridges, not these same ones but a different brand, read "crystals, activation, etc" and thought "fruitloops", but I thought, it's Selfridges selling them, so I'll give them a go.

They actually work and almost burned my hands quite crispy before I started writing this!

I put them inside the bike gloves, then put gloves on, with packs on top of my hands - they fit nicely in my Spada gloves. Grip and dexterity don't seem to be compromised, and the packs get really hot! I didn't try riding the bike with them, but I'm guessing they should provide good heating even with the windchill head on.

The box says that out in the open, they last 30 minutes, but inside gloves etc they can go on for hours.

Can't wait to give them a go riding in -2 tomorrow!
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First bike: CBF125, Feb. - Oct. 2012
Currently riding: ER-6N since Oct. 2012

[stonesie]

https://www.ebay.co.uk/itm/20-x-PAIRS-LITTLE-HOTTIES-HAND-WARMERS-SAFE-WINTER-GOLF-SKI-GLOVES-THERMAL-NEW-/251152625269?pt=UK_Sporting_Goods_Skiing_Snowboarding_Clothing_LE&hash=item3a79dcee75

These are not re-usable but are cheap and last for hours and they also do a big version that fits in with the back protector

[Islander]

I use a Zippo handwarmer when I'm out and about in the winter. One full fuel charge lasts all day and they're very effective.

[hellkat]

They're pretty cool, useful to just keep in a topbox. Someone gave me a pair about five years ago (although I've since lost them )

They were really good for warming your hands halfway through a cold ride with inadequate gloves
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Not nearly as interesting in real life.

[Easter Bunny]

The instore (store 21??) or whatever its called now are selling them in the shape of smiley faces £2 for two.
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The light at the end of the tunnel is an oncoming train!

[Fifteen15]

Often thought about these. Wondered if you dropped it down your jacket, or put it in an open inside pocket, whether it would generate enough heat to keep your body warm, and if layers would trap the heat in.
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"Pain is weakness leaving the body, and blood makes the grass grow faster...but I'll wear my gear anyway"

[DrDonnyBrago]

Ok kids, let's do some science:


The liquid inside the hand warmer is normally a super saturated solution of sodium acetate (salt and vinegar crisp flavouring). A super saturated solution is one in which it has more of the stuff dissolved in it than should be possible under normal circumstances.

When you click the metal thing, it acts as a nucleation point - same way a scratch on a windscreen attracts frost formation or the etching at the bottom of a beer glass causes bubbles to form. From this nucleation point a crystal forms, acts as a nucleation point for the rest of the solution and the solution crystallises out. This crystallisation is exothermic so heat is released upon crystal formation, making your hands (or your bollocks) warm.

Boiling them adds back in the energy released as heat earlier and allows the sodium acetate to redissolve.

[cimbian]

Got an archery friend that has Lupus and she uses these on all but the hottest of days for her hands.
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22PlusY
Current: Moto Guzzi 1100 Breva. Previous: Honda XL650V TransAlp
Bearded, Balding, Born again Buddhist Biker

[cimbian]

[DrDonnyBrago]

[Walloper]

[Springbok_Rider]

Hi,

Does anyone know the best shop to buy these in the high street? I've had my DAS course all of this week and my hands have been f*n freezing. I even purchased a pair of North Face thin gloves for under my winter gloves to no avail.

Mod 1 and 2 booked for Friday, never thought i'd be happy to see rain on the forecast - especially since most have been cancelled recently. Crappy time to learn how to ride a bike!

[Benno]

Hot water bottle inside your jacket. Problem solved.

Hey...why do we not do this?
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I'm autistic. That means I'm smarter than you.

[Springbok_Rider]

We could just use the equivalent of a diving suit underneath and have a wee when it get's too bad.

[covent.gardens]

Christ! Just dug out the twin pack I must've bought 5 or 6 years ago. The one I never used (still liquid), I clicked and it still works great. I'm going to try and boil the other one that I stored used for all these years to see if that can be made to work again too.

Wouldn't have expected them to last this long!

I get stiff knees in the cold, it would be epic to somehow attach these reusable warmers to my knees. I should've done that when in Poland at -40 , maybe it would have stopped my knees from going solid. The uses!

[Ogat]

[Derivative]

[lukamon]

you all fail so bad.

the clicker type hand warmers last exactly fuck:all

what you need is one of these:
https://store.advancedmart.com/sseinplcaflh.html

i have one for work and it usually runs out around about exactly the time i clock off 8am - 5:30pm. it doesnt last 24 hours though - no idea why it says that.
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killa wrote: Im an ass man myself

[Islander]

[Ogat]

[lukamon]

yeah, that link is a bit expensive. i got mine for £30 inc delivery.

or even cheaper: https://www.ebay.co.uk/itm/Pocket-Hand-Warmer-S-Boston-Quick-start-One-touch-safe-Ignition-compact-design-/300810643378?pt=UK_SportingGoods_Hunting_ShootingSports_ET&hash=item4609b627b2

quick tip: dont try petrol. it smokes, stinks, ruins the measurer and probably the catalyst too. it makes no heat either to boot

lighter fuel only
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killa wrote: Im an ass man myself

[Kickstart]

Hi

First got some of these in about 1991 and they were great, but couldn't find any more for about 10 years.

They don't last that long, as others have said, but being reusable makes them worthwhile. About half an hour is as long as I have got them to last. However you can boil them to reset them and put them down your gloves while still warm, then click them to trigger them half an hour later (be careful, if you click them while still warm they can get nobbin hot).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[bridgedino]

Tried them once when I suffered from frozen fingers. Warm palms, fingers still frozen though

[ocatoro]

CH3COOH + NaHCO3 → CH3COONa + H2O + CO2


= hand warmers
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CBT - 17/09/12 * Theory - 23/10/12 * Mod1 - 05/03/13 * Mod2 - 25/03/13 * BOSH!
Current - None but shed project H100 (first bike )
Past - ER5, '93 ZZR600, '92 CB400 SF, ZZR600 (again), yellow Monster 620, Blackbird - black Monster 620ie - '96 ZZR600

[Benno]