Description

UniHeat 40 Hour Heat Pack (Shipping Warmer)

The UniHeat 40 Hour Heat Pack (Shipping Warmer) is a reliable choice for protecting reptiles, amphibians, insects, and other temperature-sensitive animals during shipment. Designed for standard overnight or two-day transit, it delivers a steady, controlled heat output for up to 40 hours—long enough to safeguard your live cargo through most weather conditions and unexpected delays.

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Why the UniHeat 40 Hour Heat Pack (Shipping Warmer) Matters

Shipping live reptiles and insects safely in cold weather requires a dependable heat source. The UniHeat 40 Hour pack activates when exposed to air and maintains a consistent heat profile throughout its active life. It’s trusted across the reptile industry for its predictable performance, simple use, and proven reliability.

The red stripe across the pack marks the breathing side, where the air holes are located. Always position that side facing open air space inside the box, not against insulation or the container wall. Proper airflow ensures even heating and maximum duration.

If the pack arrives compressed, gently flex the pack before sealing the box. This loosens the contents and helps the pack activate evenly.

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How the UniHeat 40 Hour Heat Pack (Shipping Warmer) Performs in Transit

According to UniHeat’s temperature curve data, the 40 Hour warmer quickly rises to approximately 150°F within the first 6–8 hours, then holds a consistent range between 130°F and 140°F for most of its life. After about 30 hours, it gradually cools down toward 90°F, providing a smooth and predictable decline in heat output—perfect for sensitive live shipments.

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Key Features

Steady 40-Hour Performance

Maintains consistent, moderate heat through the entire shipping cycle.

Case Quantity

Packed 210 units per case, with 10-count inner bags for convenience and easy storage.

Compact Design

Fits easily into most insulated shipping boxes without taking up space.

Optional Adhesive Backing

Adhesive version available for stable placement and more uniform heating.

Safe and Eco-Friendly

Non-toxic, non-flammable, and biodegradable. Dispose of with regular trash after use.

*Actual heat duration and temperature may vary slightly depending on box insulation, ambient temperature, and shipment size. This product is intended for general temperature maintenance during shipping. Users are responsible for determining suitability for their specific application.

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Pro Packing Tip

Use inside a Styrofoam-lined or insulated shipping box to maximize performance. For added stability, pair this warmer with a PhazeLock PCM 23 Gel Phase Pack to maintain consistent temperature levels during transit.

Avoid shipping during extreme weather events or on days with expected carrier delays. Check current weather conditions before shipping.

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Bottom Line

The UniHeat 40 Hour Heat Pack (Shipping Warmer) remains a trusted standard for reptile, amphibian, and insect shipping. With its proven 40-hour heat duration, safe materials, and dependable activation, it’s the perfect choice for short-to-medium-length shipments that demand consistency and peace of mind.

👉 For best results, review our Best Practices for Shipping Warmers before use.

Order today — usually ships same day on orders placed before 12PM.