Heat Pack Finder

Which UniHeat Pack Do You Need?

Choose a heat pack based on transit time, weather conditions, insulation, and the sensitivity of what you are shipping.

Short Transit

40 Hour Heat Packs

Best for shorter shipments, regional deliveries, and situations where warmth is needed for a limited transit window.

Shop 40 Hour →

Standard Winter Shipping

72 Hour Heat Packs

A popular choice for many winter shipments when ground transit, carrier delays, or cold weather may extend exposure.

Shop 72 Hour →

Extended Protection

96 Hour Heat Packs

Recommended for longer transit windows, severe cold, or shipments where extra duration may be needed.

Shop 96 Hour →

Looking for additional durations, larger case quantities, or specialty shipping options?

Browse All UniHeat Packs

Why UniHeat

Built for Cold-Weather Shipping Confidence

UniHeat heat packs are air-activated and designed to provide long-lasting warmth for insulated shipments during cold-weather transit.

Safe and reliable UniHeat heat pack for cold weather shipping

Safe & Reliable

Trusted by shippers who need dependable warmth for temperature-sensitive products.

Long lasting UniHeat heat pack warmth for shipping

Long-Lasting Warmth

Choose from different durations to match your shipment’s expected transit window.

Eco friendly safe UniHeat heat pack

Practical for Many Industries

Used across plant, beverage, reptile, aquatics, food, cosmetics, and specialty shipping.

Featured Products

Cold-Weather Shipping Education

Better Packing Starts With Better Planning

Heat packs are only one part of a complete winter shipping strategy. Insulation, box size, airflow, transit time, weather, and carrier delays all affect performance.

Beyond Shipping

Additional Cold-Weather Uses for UniHeat Packs

While UniHeat specializes in temperature-sensitive shipping protection, customers also use UniHeat packs for emergency preparedness, outdoor activities, winter events, temporary warming applications, and other cold-weather situations where dependable heat may be helpful.

Emergency Preparedness

Winter Emergency Kits

UniHeat packs are often included in winter preparedness supplies, vehicle emergency kits, and cold-weather backup planning.

Outdoor Activities

Camping & Outdoor Events

Useful for cold-weather camping, outdoor markets, sporting events, winter gatherings, and temporary warmth during extended outdoor exposure.

General Utility

Temporary Cold-Weather Warmth

Some customers use UniHeat packs for glove warming, insulated containers, temporary equipment protection, and other practical cold-weather applications.

UniHeat packs are designed primarily for shipping and packaging applications. Always use responsibly and according to product instructions.

Recent Posts

Frequently Asked Questions

Basic Questions About UniHeat Packs

New to cold-weather shipping? These quick answers help explain how UniHeat packs work and how to choose the right duration.

How do UniHeat packs work?

UniHeat packs are air-activated. Once opened, they begin warming as oxygen reaches the pack, so airflow inside the package is important.

Which heat pack duration should I choose?

Choose based on expected transit time, weather, insulation, and product sensitivity. Shorter shipments may use 40 hour packs, while longer or colder shipments may need 72 or 96 hour packs.

Do heat packs replace insulation?

No. Heat packs work best as part of a complete winter shipping setup that includes insulation, proper box sizing, airflow, and realistic transit planning.

What can UniHeat packs be used for?

They are commonly used for plants, beverages, reptiles, fish, coral, insects, foods, cosmetics, and other temperature-sensitive shipments.

Ready to Ship Smarter?

Find the Right UniHeat Pack for Your Shipment

Protect temperature-sensitive shipments with heat pack durations designed for cold-weather transit, insulated packaging, and real shipping conditions.

Shop UniHeat Packs