--- product_id: 285390720 title: "VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 3'' x 20\" for Kombucha Tea & Beer Brewing, Fermentation, Seedlings & Plant Germination" brand: "vivosun" price: "₨511" currency: SCR in_stock: true reviews_count: 5 category: "Vivosun" url: https://www.desertcart.sc/products/285390720-vivosun-durable-waterproof-seedling-heat-mat-warm-hydroponic-heating-pad store_origin: SC region: Seychelles --- # Perfect size for seedlings & fermentation Waterproof design for durability Consistent heat for optimal growth VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 3'' x 20" for Kombucha Tea & Beer Brewing, Fermentation, Seedlings & Plant Germination **Brand:** vivosun **Price:** ₨511 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Warm up your growth game β€” because your seedlings and brews deserve the best! ## Quick Answers - **What is this?** VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 3'' x 20" for Kombucha Tea & Beer Brewing, Fermentation, Seedlings & Plant Germination by vivosun - **How much does it cost?** ₨511 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/285390720-vivosun-durable-waterproof-seedling-heat-mat-warm-hydroponic-heating-pad) ## 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 - β€’ **Waterproof & Durable:** Built to withstand moisture and spills, making it reliable for hydroponics and fermentation environments. - β€’ **Lightweight & Portable:** At just 0.1 kg, easy to move and position wherever your plants or brews need that extra warmth. - β€’ **Precision Heat Control:** Maintains ideal temperature for seedlings and fermentation, ensuring faster germination and perfect kombucha brewing. - β€’ **Trusted by Enthusiasts:** Over 1,175 reviews with a 4.4-star rating prove its effectiveness and reliability in diverse applications. - β€’ **Compact & Versatile Size:** 3'' x 20'' mat fits perfectly on window sills or wraps around gallon jars for efficient heat distribution. ## Overview The VIVOSUN Durable Waterproof Seedling Heat Mat is a compact, waterproof heating pad designed to provide consistent warmth for seedlings, hydroponic plants, and fermentation projects like kombucha and beer brewing. Measuring 3'' x 20'', it offers reliable temperature control in a lightweight, durable design favored by thousands of users for its efficiency and versatility. ## Description Other (Hydroponics) Review: Good size for window sills. - Perfect size 3.5" for window sills to get a jump on spring. Review: Perfect for My Gallon Kombucha Jars - I have 3 of these types of strip heating mats. I use them to go around my gallon sized kombucha jars during the winter and they work fine. They keep my fermenting kombucha at just the right temperature. Two of these mats I've had for years and only purchased another one fairly recently. I find them to be very useful and am very pleased with them. ## Features - manufacturer: Old Tjikko - Item Trademark: OLD TJIKKO - Item Weight: kilograms, pounds, 0.2204622620, 0.10 - Item Category: Plant Seed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B073PTZCJ4 | | Brand | VIVOSUN | | Brand Name | VIVOSUN | | Color | Green | | Colour | Green | | Customer Reviews | 4.4 out of 5 stars 1,175 Reviews | | Item Weight | 0.1 Kilograms | | Item weight | 0.1 Kilograms | | Manufacturer | Old Tjikko | | Manufacturer Part Number | VS-330104 | | Moisture Needs | Moderate Watering | | Moisture needs | Moderate Watering | | Number of Pieces | 1 | | Number of pieces | 1 | | Plant or Animal Product Type | Herb | | UPC | 615435161501 | | Unit Count | 1 Count | | Unit count | 1 Count | ## Product Details - **Brand:** VIVOSUN - **Colour:** Green - **Material:** Other - **Pattern:** Solid - **Shape:** Rectangular ## Images ![VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 3'' x 20" for Kombucha Tea & Beer Brewing, Fermentation, Seedlings & Plant Germination - Image 1](https://m.media-amazon.com/images/I/51xnebEmX6L.jpg) ## Questions & Answers **Q: How do you secure this strip around the brewing jar?** A: I use a rubber band to secure mine. Velcro strips or gaffer's tape would also work. If you're using this to brew kombucha or a comparable drink, whatever you do, don't set the jar on the heating pad, which is what another user recommended. That's the last thing you'd want to do. Doing this offsets yeast growth and will ruin batches. The variance in temperature throughout the container will also be greater. **Q: I'm thinking of this or the larger one for inside a little house I ordered for a feral cat, would it be adequate in frigid temps? It won't come insid** A: Not a good choice as a heating mat for cats, because it will heat to 2 degrees above the cats body temperature. I know this because my own old kitty, got on this mat when I was moving my dragonfruit babies from the mat to pot them up, said cat laid on it for the heat. I let her do it for quite a while, even tho I knew it would get too hot for her. She was on and off it, but it really would just get too hot. So I finally broke down and bought a pet mat and wrapped a couple shirts around it. That mat was a pet, K&H 15.75x25.5 and sold on Amazon for 36$. My old cat can lay on it all day without burning up. This plant product wasn't intended for that much heat, it did ok, but works better for the purpose it was designed for. Hope this helps, but I wouldn't do it myself, if only temporary until you could get a better "for pets" heated waterproof mat. **Q: How long can it be plugged in for?** A: Mine stays plugged in literally 24/7. I use it to start pepper seedings in January so I can't shut it off. I have had no issues with the surface underneath it overheating. **Q: I have a 1 gallon glass jar for brewing kombucha in. Does the size of the mat make a difference? If so, which size is best - 3" x 20" or 10" x 20"?** A: 10 by 20 is the best surface coverage. wrap it around the jug, not jug on top ## Customer Reviews ### ⭐⭐⭐⭐ Good size for window sills. *by P***A on 19 March 2026* Perfect size 3.5" for window sills to get a jump on spring. ### ⭐⭐⭐⭐⭐ Perfect for My Gallon Kombucha Jars *by L***R on 10 November 2025* I have 3 of these types of strip heating mats. I use them to go around my gallon sized kombucha jars during the winter and they work fine. They keep my fermenting kombucha at just the right temperature. Two of these mats I've had for years and only purchased another one fairly recently. I find them to be very useful and am very pleased with them. ### ⭐⭐⭐⭐ Plant help *by M***L on 14 April 2026* They work great get the seeds grown keep the soils in the pots warm good way to get on with gardening ## Frequently Bought Together - VIVOSUN Durable Waterproof Seedling Heat Mat 3" x 20" UL & MET-Certified Heating Pad for Hydroponic, Kombucha Tea, Brewing, Fermentation & Plant Germination - VIVOSUN Digital Heat Mat Thermostat Controller, 40–108 ΒΊF 1000W for Reptiles, Seedlings, Germination, Incubation and Fermentation - VIVOSUN 2 Pack Durable Waterproof Seedling Heat Mat 10" x 20.75" UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/285390720-vivosun-durable-waterproof-seedling-heat-mat-warm-hydroponic-heating-pad](https://www.desertcart.sc/products/285390720-vivosun-durable-waterproof-seedling-heat-mat-warm-hydroponic-heating-pad) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-08-13*