VIVOSUN 48x20.75 seedling heat mat with digital thermostat controller, temperature probe, and power plug.

VIVOSUN 48x20.75" seedling heat mat with digital thermostat, power cords, and product specifications.

Seedling heat mat with trays for germination, optimal 68-86°F. Grow cherry tomatoes, chili, eggplant, and flowers.

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Black VIVOSUN 10x20.75 inch seedling heat mat, IP67 waterproof with water droplets, green text, & germination guide.

Multi-layered VIVOSUN seedling heat mat structure: flame-retardant PVC mats, uniform heating film, and safety certifications.

VIVOSUN adjustable digital thermostat, green display 87.5°F, 40-108°F (5-42°C), impact/vibration tested.

Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo

Price:

$69.99 USD

Pay as little as
$6999/mo

for a term that suits you, up to 36 months.

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MODEL: WEB-330103CNJ

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Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo

Struggling to maintain consistent temperatures for large-scale seed starting and propagation? The Vivosun 48″ x 20.75″ Seedling Heat Mat with Digital Thermostat delivers the professional-grade performance you need. This system is engineered for serious growers and nurseries, ensuring optimal root zone temperatures for faster germination and healthier plant development across extensive setups. For growers with different space requirements, Vivosun also offers a more compact 20" x 20.75" heat mat.

The powerful 105-watt heating element provides uniform warmth over the entire surface, raising the temperature 10-20°F above the ambient room temperature. Paired with the precise digital thermostat, you can easily dial in and maintain any temperature between 68-108°F (20-42°C). Built with an ultra-durable, water-resistant design that exceeds MET safety standards and a service life of over 30,000 hours, this combo from VIVOSUN is a reliable foundation for any serious propagation effort.

What's Included

1 x Vivosun 48″ x 20.75″ Seedling Heat Mat
1 x Digital Thermostat Controller with Sensor Probe

Features

VIVOSUN 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo structure diagram

VIVOSUN 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo used for propagation

VIVOSUN 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo infrared heat distribution

VIVOSUN 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo water-resistant surface

🌡️

Precise Temperature Control

Dial in the perfect temperature from 68-108°F for optimal germination.

🌿

Expansive Growing Area

The large 48" x 20.75" surface accommodates multiple seed trays with ease.

⚡

Reliable & Efficient Heat

105W system provides consistent warmth, raising the root zone 10-20°F above ambient.

💧

Built for Durability

Water-resistant and built with fortified connections for long-term, rigorous use.

⚙️

Simple 3-Button Interface

Get started in seconds with an intuitive controller for easy temperature setting.

🛡️

Certified Safety

Exceeds MET safety standards, giving you peace of mind during operation.

Specifications

Specification	Value
Size	48″W x 20.75″L
Voltage	120V - AC
Wattage	105 Watts
Temperature Set	0-40°C (32-104°F)
Insulation Resistance	≥100MΩ500Vdc
Service Life	≥30000H

Warranty

This product is covered by a 1-year after-sale service, including a free return within 30 days of delivery. Your investment is protected with comprehensive warranty coverage and dedicated customer support.

FAQs

What is the ideal temperature range for seed germination?+

Most seeds germinate best in a temperature range of 70-85°F (21-29°C). This heat mat allows you to precisely set and maintain temperatures within this optimal range, significantly improving germination speed and success rates. For more details on maintaining the perfect climate, see our grow room temperature and humidity guide.

Can I use this heat mat for anything other than seedlings?+

Absolutely. This mat is excellent for propagating cuttings, brewing kombucha, or any hobby that requires consistent, low-level heat. It's a versatile tool and a key part of our lineup of VIVOSUN propagation equipment.

Is the thermostat controller difficult to program?+

Not at all. The controller features a simple 3-button interface that is incredibly intuitive. You can set your desired temperature and switch between Fahrenheit and Celsius displays in seconds, with no complex programming required.

How much warmer will this mat make my soil?+

The Vivosun heat mat is designed to raise the temperature of the rooting area by approximately 10-20°F (5-11°C) above the ambient room temperature. This provides the gentle, consistent warmth that seeds and cuttings need to thrive.

Can I place my seed trays directly on the mat?+

Yes, you can place standard seedling trays, pots, or containers directly on the surface of the heat mat. For best results, use a humidity dome to trap warmth and moisture, creating a perfect micro-environment for germination.

How do I clean the heat mat?+

The mat is water-resistant, making it easy to clean. Simply unplug the mat, let it cool down, and wipe the surface with a damp cloth. Avoid using abrasive cleaners or submerging the mat or its electrical connections in water.

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

Most orders are processed within 24-48 hours after being placed.

Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo

Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat Combo

What's Included

Features

Precise Temperature Control

Expansive Growing Area

Reliable & Efficient Heat

Built for Durability

Simple 3-Button Interface

Certified Safety

Specifications

Warranty

FAQs

Shipping & Returns

Customer Reviews

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