VIVOSUN 20" x 20.75" Seedling Heat Mat with Digital Thermostat, Plant Heating Pad for Seed Starting & Propagation

VIVOSUN 20" x 20.75" Seedling Heat Mat with Digital Thermostat, Plant Heating Pad for Seed Starting & Propagation

Create a warm, stable environment for seed germination and plant propagation with the VIVOSUN 20" x 20.75" Seedling Heat Mat with Digital Thermostat. Designed to provide consistent bottom heat, this 40W heating mat helps maintain an ideal temperature range for seedlings, cuttings, and other indoor growing applications.

The heat mat is designed to maintain approximately 68–86°F (20–30°C) for seed germination and propagation. Its far-infrared heating technology provides gentle, even warmth across the growing surface, helping create favorable conditions for faster germination and healthy early plant development.

The reinforced heating film features double insulation for reliable operation and helps prevent excessive localized heating. When used with a humidity dome, the consistent warmth can also support strong condensation and humidity levels around developing seedlings.

Features

✔ 20" x 20.75" seedling heat mat fits approximately two standard 1020 propagation trays
✔ Includes digital thermostat for convenient temperature control
✔ Helps maintain an ideal 68–86°F (20–30°C) range for seed germination and propagation
✔ 40W energy-efficient heating provides consistent warmth
✔ Far-infrared technology delivers gentle, uniform heat across the growing surface
✔ Reinforced heating film with double insulation for reliable performance
✔ Can reach up to approximately 104°F (40°C) depending on ambient temperature and conditions
✔ Durable PVC construction designed for long-lasting indoor use
✔ IP67 waterproof surface makes the mat easy to clean
✔ Flexible design can be rolled up for convenient storage and transportation
✔ Waterproof surface helps protect against accidental water splashes
✔ MET-certified design
✔ Ideal for seed starting, cuttings, and plant propagation
✔ Suitable for indoor gardening, grow rooms, greenhouses, terrariums, and home brewing
✔ Works especially well when paired with a humidity dome and thermostat
✔ Provides bottom heat to help create favorable germination conditions
✔ Designed for indoor use only — do not submerge

The VIVOSUN Seedling Heat Mat provides dependable bottom heat for gardeners who want more control over their seed-starting and propagation environment. The large 20" x 20.75" surface provides enough room for two standard 1020 trays, making it convenient for starting multiple seedlings or cuttings at once.

The included digital thermostat allows you to monitor and control the temperature, while the energy-efficient 40W design provides steady warmth without excessive power consumption. For best results, pair the heat mat with a humidity dome to help maintain a warm, humid environment for germinating seeds and developing cuttings.

A practical heating solution for seed starting, seed germination, plant propagation, cuttings, indoor gardening, grow tents, terrariums, and home brewing.

Package Includes:

1 × VIVOSUN 20" x 20.75" Seedling Heat Mat
1 × Digital Thermostat Controller

Mat Size: 20" x 20.75"
Power: 40W
Recommended Temperature Range: 68–86°F (20–30°C)
Maximum Temperature: Up to 104°F (40°C), depending on ambient conditions
Waterproof Rating: IP67
Use: Indoor Only — Do Not Submerge