Frequently Asked Questions
Got questions about how UniHeat heat packs work? You're in the right place. Whether you're shipping reptiles, tropical plants, live insects, or temperature-sensitive items, our eco-friendly, air-activated heat packs are designed to deliver consistent warmth and peace of mind.
If you don’t see your question below, please feel free to contact us here.
General Product Questions
What are UniHeat heat packs made of?
UniHeat packs contain a biodegradable mixture of iron powder, water, salt, activated carbon, and vermiculite. They are non-toxic and eco-friendly.
How long do UniHeat heat packs last?
UniHeat offers different models with durations ranging from 20 to 96 hours. Visit the homepage to view available pack options.
Are UniHeat heat packs reusable?
No. UniHeat packs are designed for single-use only. Once the air-activation process begins, it cannot be paused or restarted.
Usage & Activation
How do I activate a UniHeat pack?
Simply remove the pack from its sealed plastic wrapper and expose it to air. Shake gently to distribute the contents evenly, and it will begin producing heat within minutes.
Do I need to heat or microwave the pack?
No. UniHeat packs are air-activated—no electricity or heat source is required.
Can I use UniHeat packs in an enclosed space?
Yes, but ensure there is some ventilation. Oxygen is required to maintain the chemical reaction that produces heat. For shipping, do not vacuum-seal with the heat pack inside.
Shipping Safety
Are UniHeat heat packs safe for live animals?
Yes! UniHeat packs are trusted by reptile breeders, aquatics vendors, and live insect suppliers worldwide. They provide a gentle, steady heat to keep animals safe in transit.
Are they safe for shipping live plants?
Absolutely. Our heat packs are widely used by nurseries and plant shops to prevent cold shock during shipping in colder months.
Can UniHeat heat packs overheat or catch fire?
No. UniHeat packs are designed to maintain a safe, regulated temperature. They do not get dangerously hot and are safe for use in enclosed packaging with proper insulation.
Environmental Concerns
Are UniHeat packs biodegradable?
Yes. All contents inside UniHeat packs are non-toxic and biodegradable. You can safely dispose of the used pack in regular household waste.
Is the packaging recyclable?
The outer plastic wrapper should be disposed of in standard waste unless your local facility accepts flexible plastic films. The inner material is safe for landfill.
Order & Wholesale
Can I order in bulk?
Yes, UniHeat offers wholesale pricing for large quantities. Contact us here or email info@uniheat.us to get started.
Where does UniHeat ship to?
We ship throughout the United States. If you are a distributor or international buyer, please contact us directly for special arrangements.
How fast do orders ship?
Most orders ship within 1–2 business days. During colder months, please order early to ensure your heat packs arrive on time for your shipments.
Still have questions? Don’t hesitate to reach out to our support team.