Firefly Heat: Ultra-Compact Fire Starter Keychain Tool
Firefly Heat: Pocket Fire, Anywhere
Ever tried lighting a fire when your “big” gear’s back at camp—or sitting in the glove box you swore you packed? The Firefly Heat is your backup plan’s backup plan: a palm-size ferro rod keychain fire starter with a high-carbon striker that throws molten sparks like it’s angry at the cold. The glow-in-the-dark silicone band doubles as a handle and a keeper, so you’re never fumbling in the dark for your only way to stay warm.
It’s small enough to vanish inside an Altoids tin, yet big enough to actually work when your fingers are freezing.
Why it Exists
Because when it comes to fire, convenience is comfort — but reliability is survival. Lighters fail, matches get wet, and “rub two sticks together” stops being funny when the sun’s going down and the temperature’s dropping. We built the Firefly Heat to bridge that gap between everyday convenience and real survival capability.
We already had wallet-sized fire tools and micro-sized ones, but we wanted something even more compact than a credit card tool, while still big enough to use comfortably with cold or gloved hands. The result was a minimalist fire starter that disappears on your keychain but performs like full-sized gear.
Fire isn’t just about emergencies, either. It’s about living — whether that’s grilling on the porch, lighting a wood stove, or setting off a campfire that turns a random afternoon into an evening story. The Firefly Heat earns its keep even when nothing’s going wrong.
Firefly Built for Real Life
Built for Real Life
Blued high-carbon spring steel gives the striker bite and resilience. The silicone band glows softly after dark, making it easy to find in the bottom of a pack or pocket. The included keychain clip keeps it exactly where you left it—unless someone borrows it “just for a second.” At only 3¼ in × ½ in, it slips into a wallet kit, keychain pouch, or any Altoids tin build. Compact doesn’t mean compromise—it means you finally have room for the good coffee in your pack too.
→ Finish your perfect fire kit with our Fire-Starting Gear for a full spark-to-flame setup.
Every Tool on the Firefly
Built for a Lifetime
We don’t make disposable gear, and we never will. The Firefly Heat is designed to be the kind of tool you hand down, not throw away. The blued high-carbon steel striker will wear into its job, the blued steel will darken nito a deep grey over time. The ferro rod will last for thousands of strikes, and when it finally earns its retirement, you can replace your ferro rod yourself without tossing the whole tool.
Every piece — the rod, the striker, the glow band, the keychain clip — was made with serviceability in mind. Because a tool you can repair is a tool you can trust.
We back every product with Grim's guarantee. If you manage to break it, wear it out from normal use, or do something so heroic that it melts into a puddle, we’ll replace it or repair it. That’s not a marketing line; it’s our promise. Tools should quit only when you do.
(Proudly made in Texas • Built once, trusted forever.)
Firefly Heat: Specs and Features
Complete Your Fire Kit
Round out your fire setup with our Fire Starting Survival Cards or Specialized Tinder options for a spark, flame, and tinder system that lives in your pocket.
Cant Find What your Looking For?
→ Fire Category Index of Tools, Skills, and More
→ Explore all Fire Starting Tools and Gear (© 2025 Grim Workshop®. All Rights Reserved. Grim Workshop® and Survival Cards® are registered trademarks of Grim Workshop.)
FAQ Frequently Asked Questions: Firefly Heat
WHY CHOOSE GRIM WORKSHOP'S SURVIVAL TOOLS?
INNOVATIVE DESIGN
We focus on creating multi-functional tools that maximize utility while minimizing space.
Expert Craftsmanship
Our tools are made in the USA with the highest standards of quality and durability.
made in the usa
Crafted in the USA, our products deliver premium durability and American craftsmanship.
Field-Tested Reliability
Our tools are trusted by outdoor enthusiasts, survivalists, and bushcrafters around the world.
ABOUT GRIM WORKSHOP
Grim Workshop is dedicated to creating innovative, durable, and compact everyday carry (EDC) and survival tools that you can rely on in any situation. With nearly a decade of experience, we pride ourselves on crafting tools that combine practicality with ingenuity, ensuring they meet the highest standards of quality and durability. Made in the USA, our products are designed to be both effective and convenient, fitting seamlessly into your daily life or survival kit. Whether you're a seasoned outdoor enthusiast or someone who values preparedness, Grim Workshop provides the tools you need to stay ready for anything.
family owned and operated
Firefly Heat: Ultra-Compact Fire Starter Keychain Tool is proudly crafted in the USA, ensuring that every piece meets the highest standards of quality and durability. Made with precision and care, this card embodies the best of American craftsmanship, providing you with a reliable and robust survival tool that you can trust in the most demanding situations. When you choose this card, you're not just getting a tool—you're getting a piece of equipment built to last.
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Firefly Heat: Ultra-Compact Fire Starter Keychain Tool
$11.95