You hit the nail on the head with your analysis. However, in the future, try testing for a longer period of time. What I and others have found is that the bivy keeps you surprisingly warm for about an hour. Then you will be chilly, but ok, for about another hour. Then at that point heat loss from conduction overwhelms heat retention by blocking convection and radiance and you will be freezing cold. It really isn't an overnight solution (not surprising since the original use case was to keep marathon runners warm after a race and then the military started using a thicker version as a trauma blanket for keeping soldiers warm during medivac). The other issue is that since they don't breathe you will get wet from perspiration and then have an immediate issue with evaporative cooling once you exit the bivy. A better emergency solution IMO is the sitting bivy using a rain poncho (bringing your arms, legs, and head inside) and then lighting a small candle to create what's known as a Palmer Furnace.
@daveagar5594Ай бұрын
Hey man. Throw a couple Grabber Warmer hand warmers in there. A pack of 2 are 10 hours per. You would only need 1 and can extend it if you have a ziplock bag to make it air tight again. So now you have 20 hours of extra safe heat.
@ColtonWilson30007 ай бұрын
Pretty sure these saved my life once. so I swear by having some of them for the price. Got stuck in a cold rain in the fall overnight unexpectedly. I don’t think I would have made it without them.
@pantrypreparedness7 ай бұрын
Wow, I was surprised at how much heat they really held. Thank you for sharing that.
@BigggRoss11 ай бұрын
They also work great for reflecting light if you are growing produce indoors. Just wrap around the outside of the shelf you are growing on or tape to the wall behind and it will reflect light back. It can make a Big difference especially with sprouts.
@pantrypreparedness11 ай бұрын
Great idea!
@sherryh748511 ай бұрын
I've never actually paid attention to these products in other vids, thank you for demonstrating the differences between the blankets and the bivvys.
@pantrypreparedness11 ай бұрын
You're very welcome! Glad I could help
@mchristiansen13711 ай бұрын
Our heater went out last winter for 3 days. Thankfully we had 2 small space heaters, which actually kept the temp. above 53 inside. The first night, it dropped to -25 (f), and the apartment cooled down to just above 40. I took 2 of the Mylar blankets, and placed one under the bottom sheet, and the other above the top sheet, added a wool blanket and a heavy comforter. I also used a heating pad and warmed the foot area of my bed. That kept me nice and warm through the night, (not sure of what the temps were under there). If you have ever opened the box on a Hot Pocket, the interior is silver, which radiates the heat from the microwave all around. Pretty much this is what those 2 blankets did. It kept the heat trapped inside the blankets and kept me warm and comfortable. (I am too old to be getting out in the snow to camp.)
@pantrypreparedness11 ай бұрын
Perfect! I'm glad you had those.
@BusterKitten23 күн бұрын
OK here's a request (because I haven't been able to find a comparison test yet) on emergency whistles. Loudness (decibel levels with comparable volume and velocity being blown into each whistle), durability (survival rates after being stepped on, dropped from a distance, etc.), compactness (amount of space taken inside a survival bag)., and finally, weight. Thanks for your time and efforts in your videos. 👍
@pantrypreparedness22 күн бұрын
Thats funny you asked for that. I've been doing some online research on that topic and was about to buy a few to try out for myself. I didn't even think about making a video on it till you brought it up. Thank you and stay tuned
@sierraecho8847 ай бұрын
1. Take two identical hot water bottles and fill them both up with hot water fresh from the kettle. 2. Place one bottle inside the mylar sheet and the other some distance away from the first 3. Log the temperature at every water bottle, create a graph and calculate the difference. Additionally test the milar sheet for a short time on yourself to find out how practical it is (the unfolding you mentioned).
@tanyasharadamba12643 ай бұрын
Seems like a 2 piece suit one with a poncho top, compass, whistle & pocket for the win. & some kind of back /kiester pad. 😉
@bushcraftbasics203611 ай бұрын
Just came across your channel. I enjoyed the review.
@pantrypreparedness11 ай бұрын
Awesome, thank you!
@paulkajmo242411 ай бұрын
Awesome video. Thanks for sharing.
@pantrypreparedness11 ай бұрын
Thanks for watching!
@livingtx11 ай бұрын
Great video! I love your channel! I think you'll grow fast!
@pantrypreparedness11 ай бұрын
Thank you!
@Info-qw8vi4 ай бұрын
> keep you alive Ahem, misinformation. Condensation leads to temperature drop, and possible hypothermia (early morning condensation plus moisture evaporating from the body). The leakage on the blanket version however is favourable as it will still condense but less noticeably. Hence premium bivvies are made with "breathable" material. Good video otherwise, and thanks for sharing your testing.
@bencoombes271110 ай бұрын
How does a sol escape bivi compare being $40 ish maybe more it is not breathable but it it any warmer ? Also loads of things you can make with them from under blanket formyou hammock to foot warmed insulted for you boots just need a knife and cut around you foot shape help protect your from the snowly ground looking forward to more of these in the future
@middleageddad880911 ай бұрын
Have you tried a blizzard bag or blizzard coat? Spendy but awesome.
@nates252610 ай бұрын
I just found your channel and am really enjoying your videos. I very much enjoy your positive vibe compared to other channels in the prepping space. Do you think there would be much benefit if you were to double up on the Mylar bivies and wear two of them?
@pantrypreparedness10 ай бұрын
Thanks! I’m definitely willing to try it out. I’m not sure if it would make a difference, just based on how they work. But it’s worth a test!
@miken76296 ай бұрын
Won't work on cold ground, reflective radiant insulation requires an air gap to work, put an air pad inside that bivy to serve as air gap and store radiant heat from your body. If you can still fit in the bivy, OK, if not get a second one.
@trentonvet11 ай бұрын
Very good review. Tank you and best of luck to you.
@pantrypreparedness11 ай бұрын
Thanks!
@funnylarri17 ай бұрын
I've seen so many different types of blankets out there. Which one were you using in this video? Many of what is out there for around $1 are poorly rated, mainly for being transparent and tearing easily- but yours did not look that way and looked better built.
@samimurtomaki553411 ай бұрын
Helsport Fjellduk, Jerven Fjellduken or something similiar mountain cape style multifunctional piece of gear can be an option when you know you are going to need atleast some of its functions, just for emergencies it is bit heavy and pricey. But when considering the price Helsport contains so many seams,YKK zippers and grommets that it cannot be a cheap iten to manufacture either. Anyways that might be something You'd like to test. For the windy and rainy conditions and for motorcycling/hiking trips it can be quite an usefull thing.
@samimurtomaki553411 ай бұрын
Oh forgat to say that when it is windy and rainy at the same time light weiht poncho style gear doesn't perform really good because it is prone to be lifted by the wind anyways, so the weight can be an advantage too while it is in use.
@pantrypreparedness11 ай бұрын
Love it! I'll go check out the Fjellduken. Sounds awesome!
@ericdpeerik392811 ай бұрын
Nice test! Did you end up medium rare? The flimsy spaceblanket belongs in your medkit, to keep people warm and prevent them from going in to shock. You know where to find it if you need it in a pinch.
@elisebrown51575 ай бұрын
How does the SOL emergency bivvy compare?
@dalevodden135911 ай бұрын
All made from the same material all made from the same factory just different colors and they have a different seller's name on it they're all made out of the mylar material and all made the same place