Cold hands

[1fspeed]

Showa 720 on Rolock 90 with intact seals. I have dove without seals and didn't find a significant change in temperature.

Removing wrist seals was my next warmer hands experiment...

I managed to fit a pair of FE's Halo gloves (large) under some Showa 620 XXLs. Way too tight until you dunk the combo in near boiling water and make a fist. They stretch nicely and despite the thick liner, offer reasonable dexterity. It was a definite upgrade from a FE poly glove under a wool liner.

 

[Endler's]

have you tried using neoprene wet gloves under the dry outers? Something like a 3mm? You probably need to upside the dry glove....

Why Isn't everyone doing this? If you leak, you still have the neoprene insulation.

FE have been selling this idea for a while...

 

[ChrisMBC]

Two product suggestions:

1. These heated motorcycle liners, which I’ve been using for 3 years without any issues. They do want to run on a slightly higher voltage than many 12V batteries, since they’re intended to run on 13V+ alternator output, but they still pull 18W @ 12V.
2. Wrist warmers/wrist gaiters. I have a couple different pairs (Marmot/Fourth Element/homemade) and there’s not a ton of difference. I find they make a significant difference in warmth while not really reducing dexterity, and also help with gas flow between your suit and gloves. Does make a flooded glove more significant though, so I carry an XXL pair of Marigolds that I can pull on underwater in a pinch. With Showa 721s, I haven’t had to do that in years however.

 

[rjack321]

Currently using either polyprop or merino glove liners, seem to be about the same. Water under 9c and dives longer than 80 minutes get pretty painful. White's Mk3 garment which has seen better days seems to keep my core fairly warm although bulky.
Considering going to heated liners or a heated vest. I have the battery but no other components and would welcome input.

I would leave your glove situation as is and add the active heating vest. The light monkey heated shirt is legit and suitable.

What battery do you have? chemistry? capacity? and do you have a pitkin controller already?

 

[rjack321]

Why Isn't everyone doing this? If you leak, you still have the neoprene insulation.

FE have been selling this idea for a while...
View attachment 887443

1) they are bulky
2) the insulation compresses like any other wetsuit material so you lose insulation at depth

They have their place but are not some kind of miracle to warm hands

 

[grantmac]

I've just bought an Ammonite canister light which has a built in heat controller.

 

[Endler's]

the insulation compresses like any other wetsuit material so you lose insulation at depth

With dry gloves, are they not equalized with suit and therefore lofted? 'Have not learned to dive dry yet, so 'beg understanding.

 

[jborg]

With dry gloves, are they not equalized with suit and therefore lofted? 'Have not learned to dive dry yet, so 'beg understanding.

I suspect they may compress anyway under air pressure as the material is "closed". Fabric is different in that it lets the air in.

 

[ontdiver]

And ultimately, some of this boils down to your individual physiology ie the genes you were dealt with.

 

[inquis]

I find the FE xerotherm liners are noticeably warmer than my marino (Smartwool) liners. The posts regarding equalization and core cooling are also very relevant, but you may be able to borrow a pair of xerotherms to gauge effectiveness in your situation.