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Author Topic: Clam Thermal Material?  (Read 5436 times)

zimmerDN

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Clam Thermal Material?
« on: Oct 26, 2009, 06:55 PM »
How will it improve my experience out on the ice other than not having to crank the heater up full blast?  Is it really worth $100 more? 

The $300 price tag is very attractive for the Nanook 2 person.

Skipper

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Re: Clam Thermal Material?
« Reply #1 on: Oct 26, 2009, 06:57 PM »
The thermal cap not only keeps you warmer, but reduces the amount of condensation dripping on your head. I am thinking real hard about trading my Voyager for a Voyager TCX

zimmerDN

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Re: Clam Thermal Material?
« Reply #2 on: Oct 26, 2009, 07:01 PM »
So the shanty doesn't vent properly through the top?  Has this thermal material been proven can confirmed by users from previous years?

I am curious to know.  Thanks for answer.

Skipper

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Re: Clam Thermal Material?
« Reply #3 on: Oct 26, 2009, 07:07 PM »
When it is -10F you can open all the vents and it will still drip. as long as the interior temp of the shack is 50 degrees warmer than the outside temp, she is gonna drip. This has been true of all shacks I have owned, Shappell, Clam, and homade. The Thermal cap shacks are new for this year, but I have fished out of similar quilted shacks from Canvas Craft. The quilting ends the drip. If you do not fish in super cold temps with your heater running on high, you may never run into "the drip".

Mainedog

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Re: Clam Thermal Material?
« Reply #4 on: Oct 26, 2009, 08:17 PM »
Interesting Skipper.

I have suffered from condensation/rain inside my DX3000, DX4000, my Rover, and one of my home-made shacks.
The one home made shack that didn't drip had a wood stove in it.  I've considered ways to put a small
wood stove inside a portable but don't think it's worth the effort or safe.  I have fished out of a Shappell 6000 and haven't suffered from the "drip" with the heater running.  Maybe because this shack has no floor and so doesn't get warm enough inside, or maybe because it has such good ventilation (which I think is the case).
So, to answer the poster's original question, is the thermal fabric worth it?  It wouldn't be for me if it added $100 to the cost of my 6000 since I am plenty warm inside it with my Buddy (but I dress for the weather too and don't like it too hot inside a shelter).  Nor would I like the extra weight or bulk that I suspect it would add.
Anyway, I just wanted to provide my positive feedback on the 6000.

MD

zimmerDN

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Re: Clam Thermal Material?
« Reply #5 on: Oct 26, 2009, 08:44 PM »
So I am assuming you've tried all the tricks to remove condensation from above your head.

Is the slanted roof not enough to help condensation drain and collect at the lowest point of the shanty (away from the seat / person)?  Would spraying it help?

I've no problem paying the extra $100 if does get rid of the problem completely that can't be otherwise remedied by other means. 

Does it keep the shack a lot warmer?  Maybe the heat loss reduction will pay for the extra material cost from propane saved.

FISHFORPIKE

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Re: Clam Thermal Material?
« Reply #6 on: Oct 27, 2009, 04:02 AM »
I have a Frabill R-TEC from last year.  It has the Thinsulate insulated fabric and it is a warm, comfortable experience on the ice.  No dripping is one benefit.  No fabric flapping in the wind.  I don't regret paying the extra cash at all.  I heat with a standard (one bottle) buddy on low most of the time.

michianafisherman

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Re: Clam Thermal Material?
« Reply #7 on: Oct 27, 2009, 04:26 AM »
When it is -10F you can open all the vents and it will still drip. as long as the interior temp of the shack is 50 degrees warmer than the outside temp, she is gonna drip. This has been true of all shacks I have owned, Shappell, Clam, and homade. The Thermal cap shacks are new for this year, but I have fished out of similar quilted shacks from Canvas Craft. The quilting ends the drip. If you do not fish in super cold temps with your heater running on high, you may never run into "the drip".
My homemade shanty has never dripped. I use R-Board. My theory is that when you are heating a shanty with the warm air from your source, the air floats around and touches all of the objects in your shanty including your walls. Depending on how cold the objects are determines how fast the warm air will cool down. With the tarp type shanty the air hits the material and starts to cool down fast. If you put your hand on the shanty it never really warms up. With the R-Board, you can put your hand on the walls and your hand will warm up. In other words when the air hits the walls it doesn't take the heat from the air. With a two mantle lantern I can get up to 80 degrees when it is 16 degrees out side. I have loaned my extra shanty to some friends the have a Heater Buddy and they about cooked themselves. They had to leave the door halfway open.
So to answer the question if more insulation is better, or worth it, I would say yes!

toddyrotten

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Re: Clam Thermal Material?
« Reply #8 on: Oct 27, 2009, 05:50 AM »
I think they have a pill or a shot to cure "the drip". ;D

Skipper

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Re: Clam Thermal Material?
« Reply #9 on: Oct 27, 2009, 03:52 PM »
I think they have a pill or a shot to cure "the drip". ;D

You have experince with this? :o

Think of an ice cold beer bottle on a hot summer day. It is all condensating and dripping, even outside with the breeze blowing. It is the same thing with a tarp ice shack, only it is hot on the inside and cold on the outside. Ventilation does no good as long as the air outside the shack is below the dew point for the humidity level inside of the shack. Just like dew on the grass in the morning, the moisture in the air forms droplets when a certain temprature is met. There are two ways to combat this, dont use a heater or insulate. :-\

Wiener

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Re: Clam Thermal Material?
« Reply #10 on: Oct 28, 2009, 11:28 AM »
Skipper,

I posted this same answer in the General Topics, but I emailed claim last spring.

You can buy the insulated cap canvas for your voyager,  or get the Thermal X canvas.

I was told it would fit a voyager.

Also,  You might want to look into the Fan / light that Clam came out with.
I think that buy circulating the air, it may get rid of some of the condensation.

I completely agree with you.   It really sucks to have water dripping down your neck while fishing.


Wiener

mbart

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Re: Clam Thermal Material?
« Reply #11 on: Nov 05, 2009, 07:02 PM »
do a search for reflectix

phredder

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Re: Clam Thermal Material?
« Reply #12 on: Dec 30, 2009, 10:13 PM »
Last year I fished in a 4 man ice cube (6 x 6 x 6 foot) heated with a 12,000 BTU sunflower propane heater.  On most days outside air temperature was cold enough that dripping water from the ceiling was for the most part not a problem, however, after a day of fishing the inside walls/ceiling would be lined with a thick coat of frost and ice.  This year I traded up for a Clam Command Post, roughly 12 x 6 x 6 feet and made of similar material, maybe slightly thicker.   I also traded up to a 30,000 BTU vented propane space heater--garage sale find.  The heater is about 2.5 cubic feet in size and is vented straight through the roof with a 3 inch double walled stove pipe.  Consequently, the bi-product of burned propane, water, exits the tent through the stove pipe and the walls/ceiling of the tent remain relatively frost free, even in temperatures of -20 celius (roughly -5 F).  The heater gives off enough heat that the tent floor of bare-naked-ice  begins to melt.  Even with the evaporation of the wet floor there hasn't yet been an issue humidity in the shelter.

Mike.

CMMahy

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Re: Clam Thermal Material?
« Reply #13 on: Dec 31, 2009, 10:33 AM »
I've just recently installed Reflectix insulation on the ceiling of my 1 man Fish Trap Pro, and after heating the tent with and without the insulation, here's what I've found. Condensation and frost does build on the inside of the tent, the stuff on the ceiling does tend to drip down. The insulation on the roof provides a bit of a thermal break, keeping the condensation and frost from forming overhead. The condensation comes from just plain old breathing, as well as a by product of burning propane. Keeping one vent open helps let some of it out, but here's what the inside of the tent looks like at -34c with a regular Mr Buddy going full blast for 4 hours, even with a vent open:



See all the thick frost on the walls and ceiling? It was partially melting and dripping on the area over top of the heater, even in those fridgid temps.

I added the insulation, now NO condensation forms over head, and no drips. The walls still get wet however.





It helps keep the heat in as well, I don't run the heater as much or as high now. If you can afford the thermal model, by all means go for it. If you can't, buy the non-thermal and buy some reflectix, not as neat and clean, but cheaper and works as well. I think it cost me less than $40 for the 1 man (2'x10' roll of insulation and 1 roll of special tape.) Using a fan may keep some condensation from forming, but all that moist air is still circulating inside the tent, and there's all that cold, tent material for it to come in contact with. Adding insulation in any form eliminates areas for the condensation to form.

Good Luck
A bad day of fishing beats anything else I'd be doing today.....

Wiener

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Re: Clam Thermal Material?
« Reply #14 on: Jan 01, 2010, 08:28 AM »
Nice job!!

And a nice Walleye too.

Glad to see you found a fix.


Wiener

mealworm

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Re: Clam Thermal Material?
« Reply #15 on: Jan 01, 2010, 10:03 PM »
i can't believe how much frost was built up in your shanty, my clam scout never gets that bad maybe a little on the walls

tightliner3

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Re: Clam Thermal Material?
« Reply #16 on: Jan 02, 2010, 08:33 AM »
 How did you get the insulation to stay in place, am thinking about doing the same thing.  Would velcro work?

Wiener

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Re: Clam Thermal Material?
« Reply #17 on: Jan 02, 2010, 03:38 PM »
Looks like he sandwiched it between the poles and the fabric.

Wiener

CMMahy

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Re: Clam Thermal Material?
« Reply #18 on: Jan 03, 2010, 03:50 PM »
Thanks!
I just squeezed it above the hoops, but I cut slits to pass the velcro loops through and now it's not going anywhere. I reinforced the cuts with the foil tape, and it seems to be holding. I've set up and taken it down several times and it hasn't moved or shifted.

Quote
i can't believe how much frost was built up in your shanty, my clam scout never gets that bad maybe a little on the walls

That was an extreme case, the morning started at -34c (not counting wind chill) and only warmed up as high as -28c, I kept my Mr Buddy Heater running on high the whole time. The tent is pretty much new and has the blackout coating on the inside, which makes it pretty air tight and doesn't let much of the moisture out.
A bad day of fishing beats anything else I'd be doing today.....

98600xc

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Re: Clam Thermal Material?
« Reply #19 on: Jan 21, 2010, 05:04 PM »
the thermal canvas is totally worth it.  I bought a clam base camp thermal this year and it is awesome.  I can run my buddy heater on low when it is in the teens fahrenheit.

 

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