---
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: "€ 46.94"
currency: EUR
in_stock: true
reviews_count: 5
category: "Vivosun"
url: https://www.desertcart.com.cy/products/285390720-vivosun-durable-waterproof-seedling-heat-mat-warm-hydroponic-heating-pad
store_origin: CY
region: Cyprus
---

# Waterproof design for durability Compact 3'' x 20'' size fits any setup Consistent warmth for optimal germination 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:** € 46.94
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your growth game — warmth that works as hard as you do!

## 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?** € 46.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/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

- • **Multi-Use Magic:** Versatile for kombucha brewing, beer fermentation, terrarium warming, and plant sprouting.
- • **Steady Heat Boost:** Maintains ideal temperature to accelerate seedling growth and fermentation.
- • **Perfectly Portable:** Slim 3'' x 20'' footprint fits seamlessly into any home or professional setup.
- • **Trusted by Thousands:** 4.4-star rating from over 1,150 users proves reliability and performance.
- • **Waterproof Durability:** Built to withstand moisture, perfect for hydroponics and brewing environments.

## Overview

The VIVOSUN Durable Waterproof Seedling Heat Mat delivers consistent, waterproof warmth in a compact 3'' x 20'' design, ideal for accelerating seed germination, kombucha tea brewing, and fermentation. Trusted by over a thousand users with a 4.4-star rating, it’s a versatile, durable heating solution for both home and professional growers.

## Description

Other (Hydroponics)

Review: Great for kombucha
Review: Perfect size

## 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 |
| Closure Type | Cork |
| Color | Green |
| Colour | Green |
| Customer Package Type | sturdy cardboard boxes |
| Customer Reviews | 4.4 out of 5 stars 1,154 Reviews |
| Is the item dishwasher safe? | No |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Old Tjikko |
| Material | Other |
| Material Type | Other |
| Package type | sturdy cardboard boxes |
| Pattern | Solid |
| Recommended Uses For Product | plant sprouting, home brewing, terrarium warming |
| Shape | Rectangular |
| UPC | 615435161501 |
| 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/61TgC2X9muL.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

### ⭐⭐⭐⭐⭐ Great for kombucha
*by S***Y on 11 September 2020*



### ⭐⭐⭐⭐⭐ Perfect size
*by J***N on 22 January 2026*



### ⭐⭐⭐⭐⭐ Perfect for My Gallon Kombucha Jars
*by L***R on 10 November 2025*



## 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 ºF 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

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-22*