Precise warmth that nurtures life.
Heat Pack. is the thermal engine of the Seed Starter System, delivering stable and controllable warmth for reliable seed germination.
Built from highly conductive aluminum and powered by USB-C, Heat Pack. allows growers to choose and maintain their preferred germination temperature with exceptional efficiency.
Designed to work with interchangeable Seed Starter skins, Heat Pack. powers the heated Seed Starter ecosystem.
Why Heat Pack. Exists
Seeds germinate best within stable temperature ranges.
Heat Pack. was designed to provide consistent, controllable warmth without the complexity or energy waste of traditional heating systems.
By allowing growers to choose their own temperature, Heat Pack. makes it easy to adapt germination conditions to different seeds, climates, and environments.
Key Benefits
• Adjustable temperature from 20 °C to 35 °C
• Stable, even warmth for reliable germination
• Highly efficient USB-C powered heating system
• Durable aluminum construction with protective coating
• Designed to power the Seed Starter ecosystem
How Heat Pack. Works
Heat Pack. sits beneath compatible Seed Starter skins and provides a steady thermal base.
Using the + and − buttons, temperature can be adjusted in precise 1 °C increments. The indicator light flashes with each adjustment and confirms when the new setting has been saved.
Temperature adjustments are made through the rear control ports using the supplied Allen key.
Heat Pack. remembers the last temperature setting and automatically resumes operation when powered again. The system can also be reset to its calibrated default temperature of 27 °C.
System Compatibility
Heat Pack. powers the heated Seed Starter ecosystem and works with:
• Sprout.
• Germinator Mini.
• GermiPad.
Construction
Heat Pack. is built from highly thermally conductive aluminum, allowing efficient heat distribution across the Seed Starter system.
The aluminum surface is treated with an electrophoretic coating (E-coat) and finished with a durable powder-coated layer, providing long-term corrosion resistance and durability.
Power
Heat Pack. is USB-C powered.
It uses up to 6 W during warm-up and typically around 1 W to maintain temperature, making it extremely energy efficient.
Compatible with 5 V USB-C adapters delivering at least 1.5 A. For optimal performance, a 20 W or higher USB-C adapter is recommended.
What’s Included
• Heat Pack.
• USB-C cable
• Allen key (for temperature adjustment)
• Instruction manual
Seed Starter skins are sold separately.
Care
Heat Pack. requires minimal maintenance.
Wipe with a clean cloth when necessary. Do not use solvents and do not submerge the unit in water. Keep the USB-C port and control buttons dry.
