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
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Availability:
In Stock.
Arrives
Wednesday, Apr 15
Size: 10"x20.75"
Features
- Reliable Results: The VIVOSUN professional heat mat maintains optimal temperatures around 68-86F (20-30C), 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 C(104F)at an ambient temperature of 20-25 C(68-77F)in minutes; We recommend using it with the VIVOSUN thermostat controller and humidity dome
Product Dimensions: 4.33 x 4.33 x 10.63 inches
Item Weight: 1 pounds
Manufacturer: VIVOSUN
Item model number: VS-330101
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 15
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 10"x20.75"
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!
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Reviewed in the United States on January 25, 2026 by Alkaline Guy
Size: 10"x20.75"
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.
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Reviewed in the United States on March 25, 2026 by Aquaflore
Size: 10"x20.75"
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.
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Reviewed in the United States on March 24, 2026 by Pokey
Size: 10"x20.75"
Only 4 stars because it doesn't always hold temperature sometimes it goes over it a few degrees and doesn't adjust. Not the worst if youre using for plants they wont mind but if youre trying to dial something in itll be something to keep in mind.
Reviewed in the United States on January 31, 2026 by Eli
Size: 10"x20.75"
I love this heat mat. I use it for kombucha brewing. After researching several similar products designed for kombucha, one of the reviews led me to these mats. I was honestly not expecting this quality at this price point. Very sturdy construction. Holds temperatures very well and temp probe is dead accurate. I keep my house around 67 F all year round and it was not an ideal temp to brew kombucha in. After I installed the mat my SCOBY is thriving and my flavors are much better. It stays a consistent 77-79 F. The controller is very easy to use and seems to be well constructed. Will upgrade to the double version when I get another brew vessel. I can't recommend this product enough.
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Reviewed in the United States on March 7, 2026 by db336
Size: 20"x20.75"
Works well! Seedlings germinate faster and I don’t have to worry about it getting too hot with the thermostat regulating temps. I do wish it was slightly larger just so two trays can fit side by side on it. One tray ends up a couple inches off the mat. Also worth noting it doesn’t work the best in the greenhouse just because my shelves aren’t that wide but it did work well on seed starting shelves indoors.
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Reviewed in the United States on March 13, 2026 by CaitHenny
Size: 10"x20.75"
This is a very good product works really well for heating up seedlings. The thermostat Works exceptionally well and regulate the temperature with no problems. I would definitely purchase this product again
Reviewed in the United States on March 20, 2026 by LW