The Real Risks of Heated Clothes and Hand Warmers
Summary
Wirecutter outdoor writer Kyle Fitzgerald discusses the safety risks of battery-powered heated clothing, including fire hazards from lithium-ion batteries and burn injuries from heated socks and insoles. He advises consumers to verify product certifications and avoid unverified brands while sharing tips for safe usage and travel. The episode also covers traditional cold-weather strategies, such as proper layering with merino wool base layers, insulating mid-layers, and selecting the right mittens and boots to stay warm without relying on electronics.
Topics discussed
Sponsor: SNHU
Introduction to heated gear risks
Guest introduction: Kyle Fitzgerald
What is heated clothing and how it works
Who buys heated gear and use cases
Kyle's personal experience with heated vests
Recalls and safety incidents
Advice for owners of recalled products
Explanation of resistive heating elements
Lithium-ion battery thermal runaway
Comparison to other lithium-ion fires
Burn risks from heated socks and insoles
Should consumers avoid heated gear?
How to check for recalls and battery issues
Identifying battery defects
Safety testing and certification overview
How to verify battery certification (NRTL)
Limitations of certification testing
Brand recommendations and warnings
Avoiding 'alphabet soup' brands
Sponsor: SNHU
Sponsor: Amazon
Sponsor: Philip Morris International
Sponsor: Philip Morris International (cont.)
Safe usage guidelines for heated gear
Charging and maintenance tips
Traveling with lithium-ion batteries
Complexity of safety research
Transition to non-battery warmth
Principles of staying warm
Base layer recommendations
Mid-layer insulation and air pockets
Down insulation and compression
Experimenting with layering combinations
Outer shell layers for wet weather
Gloves and mittens for cold hands
Recommended mittens and layering hands
Glove fit and insulation compression
Sizing gloves for warmth
Foot warmth: sock materials
Avoiding cotton socks
Alpaca and merino wool socks
Layering socks and boot insulation
Winter boot recommendations
Show credits and links
Closing remarks
Sponsor: Amazon
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