UniHeat 30 Hour Heat Pack (Shipping Warmer)

Description

UniHeat 30 Hour Heat Pack (Shipping Warmer)

The UniHeat 30 Hour Heat Pack (Shipping Warmer) provides steady, reliable heat for shipments that need a little more time than an overnight trip. Designed for moderate-duration transport, it helps maintain stable temperatures for reptiles, insects, tropical fish, plants, and other temperature-sensitive items in cool-to-cold conditions.

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Why the UniHeat 30 Hour Heat Pack (Shipping Warmer) Matters

Not every shipment fits neatly into an “overnight” or “multi-day” category. The 30 Hour warmer bridges that gap — perfect for regional routes or 1–2 day transit windows when the weather dips below comfort levels.
It activates automatically when exposed to air and maintains consistent warmth for roughly 30–36 hours, helping prevent chill damage in transit.

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How the UniHeat 30 Hour Heat Pack (Shipping Warmer) Performs in Transit

The 30 Hour warmer reaches a peak surface temperature of approximately 135°F within the first 5 hours, then maintains a steady range between 105–135°F for most of its duration before gradually tapering off around the 36-hour mark — making it an excellent choice for shipments that start in cold climates and move into warmer regions.
The red stripe marks the breathing side, where the air holes are located — always face this side toward open space inside the box, not against walls or lids, for consistent airflow and even heating.

Key Features

Fast Activation Opens and begins warming within about 15 minutes of air exposure.

Compact Design Measures 4″ × 5.5″ — fits easily into most standard shipping boxes without adding bulk.

Balanced Output Surface temps average 105–135°F, raising box temperatures around 20°F in sub-50°F weather.

Safe & Eco-Friendly Non-toxic, non-flammable, and biodegradable. Dispose of safely with regular trash.

Optional Adhesive Backing Keeps the pack securely positioned inside the box for even heating throughout transit.

Case Quantity Packed 240 per case, sealed in 10-count inner bags for convenience and longevity.

*Performance may vary depending on insulation, box size, and ambient temperature. 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

For best results, use this warmer in an insulated (Styrofoam-lined) box. Pair it with a PhazeLock PCM 23 Gel Phase Pack to maintain stable internal temperatures during variable weather or extended routes.

If the pack feels flat, gently flex before sealing the box to help activation.

Check current U.S. weather alerts before shipping to plan around extreme cold or transit delays.

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Bottom Line

The UniHeat 30 Hour Heat Pack (Shipping Warmer) fills the gap between short and long-duration shipping needs. It’s dependable, consistent, and ideal for moderate transit times — whether you’re shipping reptiles, insects, or plants in cold weather.

👉 Before you ship, review our Best Practices for Shipping Warmers to ensure reliable results every time.

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