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The electric underwear in question is call the windak electrically heated suit (EHS) It says an umbilical should be used but I am sure some crafty TimTaylor Home Improvement type could transform it into a battery powered model. It was used primarily in military bell applications. It still works well when the suit was flooded. It is an electrical heating wire on a wool material. The suit runs from low DC voltage. Although it is supposed to be run dry they say that it still works well and safely when flooded. People have been burned from misuse of these devices. I do not know if the suits are still in production. Richard Hayward HD Diving Services 23 Montgomery Avenue Sault Ste. Marie, Ontario, Canada P6B 1M4 Phone (705) 949-3431 Fax (705) 949-1580 -----Original Message----- From: Bill (aquadart) Bott <aquadart@ix*.ne*.co*> To: Peter Fjelsten <fjelsten@my*.co*>; ingemar.lundgren@mb*.sw*.se* <ingemar.lundgren@mb*.sw*.se*> Cc: Techdiver List <techdiver@aquanaut.com> Date: December 22, 1997 12:26 AM Subject: Re: Of Drysuits and Ice Dives >Peter, > >I understand the problems you have very well. I too am a cold water diver. > The point is not that you should not dive in cold water. Rather you need >to be carful about the choices you make. And an hour in 2 degree Celsius >(36 f) is about my limit as well. I'm not sure about where you are diving >though. So it is not possible for me to know exactly what the conditions >are. In the summer months the surface temps in the Great Lakes warms >considerably! That is when you can get away with the long decos with out >having to worry about supplemental heat. That is when I'll do my long >decos, thank you very much! > >Yes you can do the long decos with electric underwear. But what do you do >when they fail??? You are stuck with a long cold deco. Cooling effects >how you off gas. At some point the cooling that has / is taking place >causes fare more harm that good. If you get out of the water severely >chilled after a log deep dive you are at MUCH greater risk of DCS. Adding >to the deco to make up for the slower off gassing only causes greater >cooling and more sever DCS hits if DCS does occur. That is a fact. Can >anyone can explain to me how to deal with a flooded suit while doing >extended in water temp between 34 -38 degrees F (1 - 3 Celsius)? While >using electric underwear? I'm curious! > > > > > > >At 07:44 PM 12/21/97 +0100, Peter Fjelsten wrote: >>Bill, >> >>Some of us are 'forced' (OK, I know of rule number one) to dive in >>(near) freezing water and would like to extend our bottom times - if it >>can be done safely. >> >>Ingemar, if you figure something safe out please let me know... - I'm as >>always bloody cold: 50 mins. today in 2 degrees Celsius. >> >>-- >>Hilsen (Regards), >> >>Peter Fjelsten > >Bill (aquadart) Bott >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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