--- product_id: 21315301 title: "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" price: "VT13704" currency: VUV in_stock: true reviews_count: 13 url: https://www.desertcart.vu/products/21315301-vivosun-10x-20-75-seedling-heat-mat-and-digital-thermostat store_origin: VU region: Vanuatu --- # Energy-efficient 20W power IP67 waterproof & easy clean Precise temp control 68-86℉ 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 **Price:** VT13704 **Availability:** ✅ In Stock ## Summary > 🌱 Heat up your growth game with precision and style! ## Quick Answers - **What is this?** 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 - **How much does it cost?** VT13704 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/21315301-vivosun-10x-20-75-seedling-heat-mat-and-digital-thermostat) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Use Smart Combo:** Includes digital thermostat for precise control—perfect for seedlings, terrariums, and even sourdough proofing. - • **Eco-Friendly Efficiency:** Runs on just 20 watts, saving energy while delivering professional-grade results. - • **Durable & Portable Design:** Flexible PVC with double insulation, plus a handy carrying bag for on-the-go gardening. - • **Advanced Far-Infrared Tech:** Soft, uniform warmth accelerates growth without scorching roots. - • **Consistent Germination Heat:** Maintains optimal 68-86℉ for faster seed sprouting and cutting propagation. ## Overview The VIVOSUN 10"x20.75" Seedling Heat Mat and Digital Thermostat Combo is a UL & MET-certified hydroponic heating pad designed for indoor gardening and greenhouse use. It delivers stable, far-infrared heat between 68-86℉ to speed up seed germination and plant propagation. Built with durable, waterproof PVC and double insulation, it ensures safety and longevity. The included digital thermostat offers precise temperature control, making it versatile for seedlings, terrariums, and even sourdough proofing—all while consuming just 20 watts of power. ## Description Who are we? VIVOSUN is the global leader for at-home growing technology & equipment. With over 10 years of demonstrated excellence in the development and production of growing tools,we have established ourselves as a trusted partner for every step in the growing process and for every level of grower. Who are we? VIVOSUN is the global leader for at-home growing technology & equipment. With over 10 years of demonstrated excellence in the development and production of growing tools,we have established ourselves as a trusted partner for every step in the growing process and for every level of grower. For Successful Cultivation Vivosun's seedling heat mats provide efficient heat conversion and even distribution, boosting plant growth in the initial stage. For Successful Cultivation Vivosun's seedling heat mats provide efficient heat conversion and even distribution, boosting plant growth in the initial stage. Optimal Germination Conditions Boost Future Plant Growth Shop Our Best Sellers You May Also Need What problem are we solving? Indoor gardening can be complex. We simplify it by integrating technology that optimizes light, airflow, and environmental control. Our smart systems make gardening easier, helping both beginners and experts achieve thriving plants effortlessly. What makes our products unique? Vivosun combines innovation, quality, and sustainability. Our smart products—such as Vgrow, AeroLight, AeroZesh, and GrowHub—streamline gardening with automated controls and energy-efficient features, ensuring better growth outcomes while reducing environmental impact. What problem are we solving? Indoor gardening can be complex. We simplify it by integrating technology that optimizes light, airflow, and environmental control. Our smart systems make gardening easier, helping both beginners and experts achieve thriving plants effortlessly. What makes our products unique? Vivosun combines innovation, quality, and sustainability. Our smart products—such as Vgrow, AeroLight, AeroZesh, and GrowHub—streamline gardening with automated controls and energy-efficient features, ensuring better growth outcomes while reducing environmental impact. 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: Terrarium Tank Warmer (10 gallon glass tank) - I have 10 gallon glass tanks set up as terrariums. Since the substrate stays moist at all times, this gently heats the soil slowly. It's just a backup/booster as the house gets cold in the winter. It will not keep the air in the terrarium warm, but it does keep the soil warm. (which is how it's designed - a low and slow heater, which works best on water due to it's high heat capacity) Placed under the tank, with the soil probe set to "70F" it kept a range of 68-72F in the soil even if the room is 60F. My substrate is 4-6 inches deep, well aerated, and kept moist. Surprisingly, it works on tanks that have 4 little feet raising the tank up. (such as the Thrive brand 10 gallon open front vivarium tank) I assumed all the heat would simply rise up, hit the bottom of the tank, and proceed to leak out the sides. Without any significant warmth added to the soil. But it actually warms the soil just fine. Remember that very cold water shouldn't be poured into a glass tank with a heater touching it, because the temperature difference could crack the glass. That being said, these heaters heat very gently, without touching the glass (in my set ups), and I pour room-temperature (60F) water into the tank to water the soil. Pro - if you hang the controller up, you can easily see the current temperature of the soil reported by the soil probe. Downside - it's not quick/easy to change the temperature setting. It is a strange design, where you do NOT press the up or down arrow buttons to adjust the temperature up or down. Instead, you must hold down the setting button for a long time until it blinks. Then press up/down buttons to chose the temperature goal. Then hold down the setting button for a long time until it goes back to showing the current temperature. ## 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 | |---------------|-------| | Best Sellers Rank | #5,051 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2 in Plant Heating Mats | | Customer Reviews | 4.5 out of 5 stars 13,992 Reviews | ## Product Details - **Brand:** VIVOSUN - **Color:** Black - **Item Weight:** 1 Pounds - **Number of Items:** 1 - **UPC:** 742920469795 ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/81qll1CjexL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71RlmET9WsL.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/81udzVaYgZL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71hySjq6YwL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/717bQcJZo4L.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! ### ⭐⭐⭐⭐⭐ Terrarium Tank Warmer (10 gallon glass tank) *by P***Y on March 24, 2026* I have 10 gallon glass tanks set up as terrariums. Since the substrate stays moist at all times, this gently heats the soil slowly. It's just a backup/booster as the house gets cold in the winter. It will not keep the air in the terrarium warm, but it does keep the soil warm. (which is how it's designed - a low and slow heater, which works best on water due to it's high heat capacity) Placed under the tank, with the soil probe set to "70F" it kept a range of 68-72F in the soil even if the room is 60F. My substrate is 4-6 inches deep, well aerated, and kept moist. Surprisingly, it works on tanks that have 4 little feet raising the tank up. (such as the Thrive brand 10 gallon open front vivarium tank) I assumed all the heat would simply rise up, hit the bottom of the tank, and proceed to leak out the sides. Without any significant warmth added to the soil. But it actually warms the soil just fine. Remember that very cold water shouldn't be poured into a glass tank with a heater touching it, because the temperature difference could crack the glass. That being said, these heaters heat very gently, without touching the glass (in my set ups), and I pour room-temperature (60F) water into the tank to water the soil. Pro - if you hang the controller up, you can easily see the current temperature of the soil reported by the soil probe. Downside - it's not quick/easy to change the temperature setting. It is a strange design, where you do NOT press the up or down arrow buttons to adjust the temperature up or down. Instead, you must hold down the setting button for a long time until it blinks. Then press up/down buttons to chose the temperature goal. Then hold down the setting button for a long time until it goes back to showing the current temperature. ### ⭐⭐⭐⭐⭐ Excellent and affordable sourdough proofer *by A***E on March 25, 2026* I use this heat mat and thermostat as a sourdough proofer, and it works fantastic. I set it up inside an old soft cooler with a small rack to hold my jars and dough, and it creates a perfectly controlled environment. The thermostat maintains a consistent temperature, which I’ve confirmed by checking the internal temp of my starter and dough. It’s reliable, easy to use, and does exactly what it should. This is a very effective and economical alternative to expensive proofing boxes. Highly recommend for sourdough baking. ## 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.vu/products/21315301-vivosun-10x-20-75-seedling-heat-mat-and-digital-thermostat](https://www.desertcart.vu/products/21315301-vivosun-10x-20-75-seedling-heat-mat-and-digital-thermostat) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-06-06*