How warm is a Dry Suit ?

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azstinger11

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Pretty soon you will be looking at a rebreather in order to utilize all that time you can stay comfortable in cold water.
I'm in this message, and my wallet doesn't like it lol
 
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Roy_W

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The undergarments wear quite high up, which I would presume means that there is a gap of maybe 3 cms between the top of the undergarment and the bottom of the neck seal.. Does it really make that much of a difference ?

As I mentioned it wont cost us any more to have a neck seal fitted at a later date than it would to having it had done just now.
 

Joebar

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The undergarments wear quite high up, which I would presume means that there is a gap of maybe 3 cms between the top of the undergarment and the bottom of the neck seal.. Does it really make that much of a difference ?

As I mentioned it wont cost us any more to have a neck seal fitted at a later date than it would to having it had done just now.
It is a difference but not a BIG difference. When you are going for max thermal protection, then neoprene neck seal is your friend.
In my opinion the neoprene neck seal is more durable compared with the latex. For me these two points justify the added costs.
But again its no problem diving with the latex. Many people do it and i have done it for years.
 

admikar

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The undergarments wear quite high up, which I would presume means that there is a gap of maybe 3 cms between the top of the undergarment and the bottom of the neck seal.. Does it really make that much of a difference ?

As I mentioned it wont cost us any more to have a neck seal fitted at a later date than it would to having it had done just now.
It's not about cost, it's about time.
Even though factory is close to you, depending on their workload you might wait a week or two to get your seal changed.
Latex is sturdier than silicone, but still can be torn (ask me how I know). If that happens on a dive, you are screwed.
Now you can install neoprene seal on Quick neck system. And only if you have really narow shoulders it is possible for harness to press on seal ring.
 
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Roy_W

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Ok I will give some feedback when we get the suits and get some dives behind us, @Joebar, I presume that you dive the Lac Leman and if so I know that you know what cold water is, lol... I am still diving with my wetsuit at the moment but is is starting to become cold.
Last Sunday I did a touch and go at 34m, then headed back up to 14m to get some heat back again. I am truly hoping that for the price the SF Tech will allow me to do a lot more than just a touch and go... At least to be able to 20 mins reasonably comfortably around the 30m mark..
 

admikar

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Ok I will give some feedback when we get the suits and get some dives behind us, @Joebar, I presume that you dive the Lac Leman and if so I know that you know what cold water is, lol... I am still diving with my wetsuit at the moment but is is starting to become cold.
Last Sunday I did a touch and go at 34m, then headed back up to 14m to get some heat back again. I am truly hoping that for the price the SF Tech will allow me to do a lot more than just a touch and go... At least to be able to 20 mins reasonably comfortably around the 30m mark..
Suit itself won't help you one iota. It's undergarments that are doing the work. Make sure you have quality wicking base layer, and if possible do not exert yourself before getting in water. You want to keep sweating as low as possible.
 
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Roy_W

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"Suit itself won't help you one iota. It's undergarments that are doing the work"

Agreed, I also bought the SF Tech Sweater and Pants which I wore today when Franz did the measurements. He told me that it was not necessary but for hygenic purposes it would be good to wear a thin first layer, we will undoubtedly use the same first layer that we use for skiing .

My wife is too tall for the SF Tech pants so she got a pygama instead. It's kind of handy that plongee.ch share a building with SF Tech..
 

Joebar

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@Joebar, I presume that you dive the Lac Leman …
Not really, but the lake of Zürich is as cold as the Lac Leman :cool:

concerning the dive time, these kind of dives are pretty normal in a dry suit:
BBE6FE0A-9975-43C9-AF32-B2543CDFE685.png
 
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Roy_W

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We finally received our SF Techs, my wife took the compressed Neoprene and I took the trilaminate TNT. The wife has a Kwark full length pyjama and I have the SF Tech Joggers and Sweatshirt (equivalent to 300 Insulate)... We both have the Rolok dry glove system, latex for the neck seal and silicon on the wrist.

Today was out first dive in a Dry Suit so it wasn't a typical dive, we were under instruction by our club and as such did the basic exercises, weighting up correctly, how to return oneself to an upright position after getting air in the feet and a couple of exercies about evacuating air quickly..

It was fresh outside this morning but the sun was shining, whilst we were preparing our gear on the surface, dry suit pulled only half way up wearing the undergarments it becomes very easy to sweat.... Someone mentioned this in the topic, but I didn't realise just how warm those undergarments are on the surface... Because of this I waited till the last moment before completely donning the dry suit.
We dive mostly from the shore and the entries are on a gentle slope which goes down to 3m, I was surprised by how quickly the suit tightens around the feet/legs... The water on the surface was around 13° ( 55° F).

At waist height we then swam about 5minutes to get the buoy where we start our dive. First remark, all the heat that was generated between the prep stage and now very quickly disappears. I expected it to far more subtle.

We started our dive and some exercises, so I wasn't aware of the cold/heat. We then headed off down to 20m for more exercises, I honestly expected to be warmer, but it took me a little while before I realised that I wasn't getting colder, and that alone is a major and very agreeable difference.

At 25m ( 70 feet) the temperature was around 9°(48°) and this is what surprised me the most, I was not any colder now than I was at the surface. There was none of that effect of increasing cold. there was none of that disagreeable cold wet suit feeling.

To cut the rest of the dive short, we ended the dive after 55 minutes and from start to finish the heat/cold remained pratically constant and this is new to me… A little bit of air from time to time and the cold seems to stay at bay, it becomes manageable.

At the surface it’s very, very agreeable to not start shivering 😉through a damp wet suit. and this is also highly agreeable.

So to sum things up and answer my own question, “How Warm Is A Dry Suit”, well it’s not actually warm, it’s seems to sit between the two, you are definitely not warm but at the same time you are not really cold. It’s kind of neutral but in a good way. (Obviously results vary and we are not using heated undergarments and mileage will definitely vary).

It was an expensive purchase but now we know that we can dive all year long which is nothing short of excellent.

PS : we didnt use the Rolok gloves today, our instructor asked us to wait until we have done 2 dives... My hands we by far the coldest part of my body at the end of the dive, head being second. Without any doubt we know that the gloves will also make a big difference.
 

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