- 1 x Vivosun 48″ x 20.75″ Seedling Heat Mat
- 1 x Digital Thermostat Controller with Sensor Probe
Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat
- Raises root zone 10-20°F above ambient room temperature
- Maintains any temperature between 68-108°F
- Service life of over 30,000 hours with water-resistant design
- 1-year warranty
- View More Details
Earn 64 points for shopping and get $0.64 off your next order. Join Harvest Club for free.
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are managing extensive propagation setups because inconsistent root zone temperatures across large seed starting areas keep slowing down your germination rates.
- You are scaling up your seed starting operation because smaller mats leave too many trays sitting in unheated space and disrupt your propagation workflow.
- The 105-watt heating element provides uniform warmth over the entire surface, raising the temperature 10-20°F above the ambient room temperature.
- The digital thermostat lets you easily dial in and maintain any temperature between 68-108°F.
- Growers scaling up large propagation projects say the expansive surface area easily fits multiple trays at once and eliminates cold spots across their setup.
- Nurseries running extensive seed starting efforts report that dialing in exact root zone temperatures with the digital controller leads to faster germination.
Vivosun 48″ x 20.75″ Seedling Heat Mat Digital Thermostat
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
Features




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
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.
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.
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.
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.
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.
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.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.