40 Hour Heat Pack Uniheat

For shipments that need dependable warmth over shorter routes, the UniHeat 40 Hour Heat Pack delivers consistent, reliable heat for up to 40 hours. It’s a perfect choice for overnight or 2-day shipping, providing gentle, sustained warmth to protect tropical plants, reptiles, and perishable items.

Why Choose the 40 Hour Heat Pack

This heat pack is compact, easy to activate, and designed for short-distance or fast-transit shipments. Whether you’re sending small terrariums, plant cuttings, or temperature-sensitive goods, you’ll appreciate how quickly it reaches optimal warmth and how steady it remains through the journey.

For shipments that take a little longer, consider upgrading to the 72 Hour Heat Pack. It offers longer coverage while maintaining the same reliability you expect from UniHeat.

Pairing for Best Results

When used with proper insulation, this 40-hour version performs beautifully—even during cooler months. You can also explore our 96 Hour Heat Pack for shipments that require extended duration or cross-country delivery.

With UniHeat, every shipment travels safely—warm, consistent, and secure.