UniHeat Shipping Heat Packs

The UniHeat heat pack (shipping warmers) is the most popular heat source for any one who needs to ship reptiles, amphibians, insects, invertebrates, fish, corals, plants and many other perishable items.

How Does A 72 Hour Heat Pack Work

The 72 hour heat pack will activate in approximately 30-45 minutes and reach its peak surface temperature of 115°F (46°C) in approximately 4 hours. The temperature of the heat pack will then gradually decrease and maintain at approximately 100°F (38°C) for majority of of its operational life.

One 72 hour heat pack will increase the temperature of a 1 cubic foot insulated box by approximately 15 degrees. For every additional heat pack that you use the temperature will raise an additional 15 degrees. Ideally the 72 hour heat pack is used for priority or express shipping times of 2-3 days (without delays). They are not recommended for shipping options of 3+ days of transit.