---
product_id: 91717139
title: "Garden Smart Waterproof Seedling 20\" x 20.75\" Heat Mat with Digital LED Thermostat (20\" x 20.75\" Heat Mat with Thermostat)"
brand: "athena"
price: "¥11180"
currency: JPY
in_stock: true
reviews_count: 2
category: "Lawn & Patio"
url: https://www.desertcart.jp/products/91717139-garden-smart-waterproof-seedling-20-x-20-75-heat-mat
store_origin: JP
region: Japan
---

# Garden Smart Waterproof Seedling 20" x 20.75" Heat Mat with Digital LED Thermostat (20" x 20.75" Heat Mat with Thermostat)

**Brand:** athena
**Price:** ¥11180
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Garden Smart Waterproof Seedling 20" x 20.75" Heat Mat with Digital LED Thermostat (20" x 20.75" Heat Mat with Thermostat) by athena
- **How much does it cost?** ¥11180 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/91717139-garden-smart-waterproof-seedling-20-x-20-75-heat-mat)

## Best For

- athena enthusiasts

## Why This Product

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

## Description

This digital temperature control device allows gardeners to select and maintain optimum rooting temperatures for faster seeding or cutting growth. It is compatible with many other heat mats, but is recommended for use with the Garden Smart Heat Mat.Garden Smart seedling heat mats warm the root area 10 to 20 degrees over ambient temperature, improving the germination process and overall success of seedlings and cuttings. Durable, portable and water resistant, the Garden Smart seedling heat mat is ideal for greenhouses, nurseries, and indoor gardens. Includes a 6 foot 120V power cord.

## Features

- Digital temperature controller for heat mats, Provides constant optimum temperatures for specific crops
- Illuminated indicator light; 3-prong ground plug, Compatible with all heat mats - recommend using Garden Smart Heat Mat
- Garden Smart seedling heat mat warms root area 10 to 20 degrees over ambient temperature.
- Improve germination process and improve on seedling and cuttings success. Durable construction, waterproof and easy cleaning is is ideal for greenhouses, nurseries, and indoor gardens.

## Images

![Garden Smart Waterproof Seedling 20" x 20.75" Heat Mat with Digital LED Thermostat (20" x 20.75" Heat Mat with Thermostat) - Image 1](https://m.media-amazon.com/images/I/41AMg-y6kYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    No complaints, other than the power rating not being marked on the mat
  

*by E***N on Reviewed in the United States on April 28, 2017*

Just got it yesterday. Put the mat on a floor over a towel for insulation, seedling containers on top and a loose cardboard tent on two sides and over the top. Set the thermostat for a 5 degree F rise; appears to come on a few minutes every hour or so, keeping the temperature in about a one-degree range above the temperature set. Appears to be able to warm a calm partially-enclosed space about 5-10 cubic feet around 10 degrees over ambient, a well-insulated fully-enclosed space would be perhaps 20+ degrees. Mat arrived without instructions; looking at similar products the power consumed appears to be about 40W, but that isn't marked on the mat. Indoors this should use something like 1 kWH per week. The controller is marked up to about 8A, so it should easily handle several mats and perhaps a small slow-cooker or a space heater set on low.

### ⭐⭐⭐⭐⭐ 







  
  
    I so love it I bought 2 more
  

*by K***A on Reviewed in the United States on May 13, 2017*

I so love it I bought 2 more! It works great. It's water proof which has been very helpful.  product link:  https://www.amazon.com/dp/B01N9SHCC0/ref=cm_cr_ryp_prd_ttl_sol_4

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-02*