---
product_id: 21315301
title: "10\"x 20.75\" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse"
brand: "vivosun"
price: "R1225"
currency: ZAR
in_stock: true
reviews_count: 13
category: "Vivosun"
url: https://www.desertcart.co.za/products/21315301-10x-20-75-seedling-heat-mat-and-digital-thermostat-combo
store_origin: ZA
region: South Africa
---

# Energy-efficient 20W power IP67 waterproof & easy clean Precise temp control 68-86℉ 10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse

**Brand:** vivosun
**Price:** R1225
**Availability:** ✅ In Stock

## Summary

> 🌱 Grow smarter, not harder — heat your seeds to success!

## Quick Answers

- **What is this?** 10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse by vivosun
- **How much does it cost?** R1225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/21315301-10x-20-75-seedling-heat-mat-and-digital-thermostat-combo)

## Best For

- vivosun enthusiasts

## Why This Product

- Trusted vivosun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Indoor Use:** Ideal for hydroponics, greenhouses, terrariums, and even home brewing warmth.
- • **Smart Digital Thermostat:** Accurate temperature control with easy-to-read display for perfect growing conditions.
- • **Energy-Saving Performance:** Runs on just 20 watts, saving electricity while boosting plant growth.
- • **Consistent Germination Heat:** Maintains optimal 68-86℉ for faster seed sprouting and cutting propagation.
- • **Durable & Waterproof Design:** Built with double insulation and IP67-rated surface for long-lasting, safe indoor use.

## Overview

The VIVOSUN 10"x20.75" Seedling Heat Mat with Digital Thermostat is a UL & MET-certified hydroponic heating pad designed to accelerate seed germination and plant growth. Featuring far-infrared heating technology, precise temperature control (68-86℉), and a waterproof, durable build, it ensures uniform warmth while saving energy with just 20 watts of power. Perfect for indoor gardening, greenhouses, and versatile warming needs, this combo set delivers reliable, professional-grade results for serious growers.

## Description

desertcart.com : VIVOSUN 10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse : Patio, Lawn & Garden

Review: Good Flat Surface Under Seedling Trays, Accurate Temp Control with Ideal Display - Bought VIVOSU Heat Mat with external controller & temp probe to use with Ferry Morse seedling tray & seedling containers. Also using blue & red LED hanging light, not shown Added Ferry Morse humidity dome. VIVOSUN mat under tray. Probe from controller inserted into one container at a time. Display can stay on continuously for easily walking into room & immediately seeing soil temp. Display & controls are very visible & easy to operate correctly. Obtaining very good seed growth due, in part, to good warmth contribution from mat. First bought VIVOSUN mat w/o probe. Controller was not controlling heat accurately. For a test, set to 100 deg F on setting display. Actual mat temp display showed 100 degrees but could touch mat & it was only slightly warm. Also, power cord inside mat, on top, on that mat protruded above overall mat height towards center. Required adding cardboard shims on cord side to have level tray with consistent temperature & light. Returned 1st mat and bought Seedling Heat Mat and Thermostat Combo Set. Delighted with performance of Combo Set!
Review: Quality Product - This heat mat looks and works great. The digital control is easy to adjust from celsius to degrees and can be adjusted to the desired temp for the seeds you are working with. There is a thermostat connected probe that is placed in the planting area and it comes with a small chart that gives you the recommended temperature for the different plants. The water proof mat is easy to clean and is just the right size for my shelving unit.

## Features

- Reliable Results: The VIVOSUN professional heat mat maintains optimal temperatures around 68-86℉ (20-30℃), perfect for Seedling start and cutting propagation; Made from durable PVC material, it's designed to last
- Stable & Uniform Heat: The advanced far-infrared heating technology of this heat pad provides your plant with a warm environment to create optimal conditions for speeding up germination and accelerating the growth rate; The strengthened heating film with double insulation layers ensures this durable mat will not scorch the root and can produce plenty of invigorating dew when being used in combination with a humidity dome
- Built to Last: Designed with soft, flexible, and ultra-lasting material, this warming mat goes beyond stringent MET standards; The IP67 rating waterproof surface is easy to clean that enables safe scrubbing; Note: please only use the product indoors and do not immerse it in the water; Equipped with a carrying bag in the package, you can simply roll it up and pack it away, which is handy to move to different places; This product does not specify any expiration date
- Great Combination: This warming mat also runs on only 20 Watts to help you save on electricity; Combined with VIVOSUN thermostat, it can not only use for plant sprouting and other indoor gardening but also for home brewing and terrarium warming, meeting your different daily needs
- Innovative Heating: With the radiate far-infrared light wave, this seedling heat mat makes the heat source softer and provides enough heat, which can be heated up to 40 ℃（104℉）at an ambient temperature of 20-25 ℃（68-77℉）in minutes; We recommend using it with the VIVOSUN thermostat controller and humidity dome

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016MKY7C8 |
| Best Sellers Rank | #217 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in Plant Heating Mats |
| Customer Reviews | 4.5 4.5 out of 5 stars (15,103) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Item model number | VS-330101 |
| Manufacturer | VIVOSUN |
| Product Dimensions | 4.33 x 4.33 x 10.63 inches |

## Product Details

- **Brand:** VIVOSUN
- **Color:** Black
- **Item Weight:** 1 Pounds
- **Number of Items:** 1
- **UPC:** 742920469795

## Images

![10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse - Image 1](https://m.media-amazon.com/images/I/81qll1CjexL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Anyone use this on a 20 gallon long tank for a leopard gecko???**
A: I use mine to heat my 29 gallon reptile aquarium. Get the thermostat for it because these mats run at about 100 degrees without it.

**Q: can you put splitter on controller and run multiple mats?**
A: You surely can, the 1020 mats are only about 20 watts each.  What you need to watch out for though is after you get various brands of mats.  They are not equal.  Some run hotter than others.  If you place your temperature probe in a tray on a hotter mat and set it to 85F, one of your cooler mats may only  be maintaining around 78F.

**Q: What do you do to get this mat to lay flat? Mine seems permanently creased and bent from its shipping position.**
A: I had to put something about the same size on it for a couple of days to get it to lay flat. Even a piece of wood with a weight on it would work, about 5 pounds is all that's needed. Hope this helps!

**Q: Can the probe be left in the air to read temperature? I'm trying to keep an enclosed container warm at a set temp.**
A: Yes, it can read room temperature, however it's the soil temperature that helps the seedlings grow. Also, I believe  when it reaches set temperature it has a delay before turning back on. So use sand or rocks to retain the heat longer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Flat Surface Under Seedling Trays, Accurate Temp Control with Ideal Display
*by A***Y on January 25, 2026*

Bought VIVOSU Heat Mat with external controller & temp probe to use with Ferry Morse seedling tray & seedling containers. Also using blue & red LED hanging light, not shown Added Ferry Morse humidity dome. VIVOSUN mat under tray. Probe from controller inserted into one container at a time. Display can stay on continuously for easily walking into room & immediately seeing soil temp. Display & controls are very visible & easy to operate correctly. Obtaining very good seed growth due, in part, to good warmth contribution from mat. First bought VIVOSUN mat w/o probe. Controller was not controlling heat accurately. For a test, set to 100 deg F on setting display. Actual mat temp display showed 100 degrees but could touch mat & it was only slightly warm. Also, power cord inside mat, on top, on that mat protruded above overall mat height towards center. Required adding cardboard shims on cord side to have level tray with consistent temperature & light. Returned 1st mat and bought Seedling Heat Mat and Thermostat Combo Set. Delighted with performance of Combo Set!

### ⭐⭐⭐⭐⭐ Quality Product
*by W***X on January 13, 2026*

This heat mat looks and works great. The digital control is easy to adjust from celsius to degrees and can be adjusted to the desired temp for the seeds you are working with. There is a thermostat connected probe that is placed in the planting area and it comes with a small chart that gives you the recommended temperature for the different plants. The water proof mat is easy to clean and is just the right size for my shelving unit.

### ⭐⭐⭐⭐⭐ Some issues at first but it’s been corrected.
*by M***E on February 27, 2020*

Update to my review—I received the new replacement unit today and the new thermostat is working. Amazon and Vivosun quickly resolved my issue and sent a replacement that took only two days to arrive. Thanks to both Companies for taking care of this! I’ve increased my original 3 star review to 5 stars! Testing it out—you set the thermostat to a temperature, I.e. 74 degrees (Fahrenheit) and insert the temperature probe into the soil or growing medium. If the probe is reading less than the desired temperature it will run the heating pad until the medium is heated to the temperature you want it. My new replacement unit shows all this in degrees Fahrenheit, and let’s you program the temperature in Fahrenheit. The first “defective” one only showed it in degrees Celsius and could only be set to temperatures in Celsius before displaying the Fahrenheit Temperature. The new heating pad, like the previous one works, no issues there. Keep I’m mind though it plugs into the thermostat, the thermostat does not set or regulate the temperature of the heating pad. The heating pad will be warmer than the temperature displayed on the thermostat—as the thermostat is only monitoring the temperature of the soil or growing medium. Once it reaches the set temperature it shuts off power to the heating pad. My older review from earlier this week dealing with the defective thermostat: I am in the process of returning the combination seedling heating pad and thermostat because the thermostat doesn’t work. The unit I received did not supply power to the heating pad. I had set up everything as per the instructions and kept an eye on it, noticing that the “heating” light never came on with the pad plugged in. So I took a non contact thermometer and checked the pad temperature—it was room temp and nothing more, then plugged in an outlet tester (in the photos) to check the thermostat plug in for the heating pad and there was nothing. I’m assuming it’s not wired correctly and contacted Vivosun’s support via email. I emailed them Sunday and have not heard anything back yet, so I decided to exchange the item through Amazon—which had a very easy and efficient way of handling the exchange—they are sending me a new one which I hope works correctly and I have to drop the defective one off at my nearest Kohl’s store customer service department to be sent back to Amazon. I’ll have to update this once I get the replacement unit and can better judge the thermostat. The heating pad works very well and I had to manually regulate the temperature to sprout my seeds. It seems very heavy duty for the wattage it works on and should last a few seasons. I know it’s offered separately from the combination set I had ordered. If it had worked right, the thermostat was easy to set to the temperature on and I like how the probe is designed. The only other complaint I had was that you have to set the temperature in Celsius—but it will display the temperature in Fahrenheit. Some conversion work needs to be done if you want to set it at 80 degrees F for tomatoes. Had it worked and controlled the heating pad, had Viviosun contacted me back with their advice on what to do (it’s rumored on Facebook they are not responding to emails possibly because of being located in China and not working due to current events), I would have given this a 5 star review and written how well it works. Hopefully I can post that review once I get a properly working replacement.

## Frequently Bought Together

- VIVOSUN 10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution
- VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/21315301-10x-20-75-seedling-heat-mat-and-digital-thermostat-combo](https://www.desertcart.co.za/products/21315301-10x-20-75-seedling-heat-mat-and-digital-thermostat-combo)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-20*