By David Ponce
The Butterfly Heater is a (very manly) personal heater that uses a process called platinum catalysis to produce a constant flow of warm air, which is pumped out through the (very manly) butterfly pattern and into whatever part of your body would require heating via a (very manly) personal heater. The process uses lighter fluid, which it evaporates to combine with oxygen and create an allegedly flameless heat source. Seeing as this will be going in your pocket, or some other such closed environment, we’d rather make sure there is no flame at all, which is why we recommend you give it to your little brother to test first. One ounce of lighter fluid will fuel the thing for up to 24 hours.
Again, we can’t vouch for any of this, because our suicidal tendencies do not include self-immolation. Don’t let that mess with your groove. If you do order it and survive, please let us know how it went. It’s $18 or $30 for two.
Also, see this page for a “history” of the thing.