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heating mat-48x20
waterproof-48x20 heating mat
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Specifications-121x52cm-heating mat
High quality materails of Heating Mat
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Durable heating mat
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heating mat-48x20
waterproof-48x20 heating mat
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Home Grow Kits Seedling Heat Mat 2025 New Spider Farmer® 48”X20.75” Seedling Heat Mat and Digital Thermostat for Germination
Heating Mat-10x20
2025 New Spider Farmer®10''X20.75'' Seedling Heat Mat Plant Germination Mat for Indoor Grow $40.99
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5-pack 11 gallon grow bags Heavy Duty 300G Thickened Nonwoven Plant Fabric Pots with Handles $41.99

2025 New Spider Farmer® 48”X20.75” Seedling Heat Mat and Digital Thermostat for Germination

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)

$55.99

Your seeds will only germinate if they are provided the right environment. Seeds need to be warmer than room temperature (75-80 degrees, to be exact) to sprout, and so you will see a much higher germination rate with a heat mat.

Spider Farmer’s Seedling Heat Mat warms the root area of seedling 50-77°F above the ambient air temperature, significantly improving the germination process and the success rate of seedlings and cuttings.

Fast Shipping

Same day delivery, 3-8 business days for the product to reach you.

After-Sale Service

Up to 5 years warranty. Best customer service.

The Cyber Monday sale will end on December 8nd.

Fit Guide

Check the following fit chart to find how many lights you need for your grow tent. For Bigger Growing Space, SF4000 / SF7000 / SE5000 / SE7000 will be more suitable.

SF SERIES
SF Tent Size # of SF1000 # of SF2000 # of SF4000 # of SF7000 SF FAN COMBO
2’x2’ 1 / / / 4 inch
3'x3' 1 1 / / 4 inch
4.5'x2' 2 1 / / 4 inch
4'x4' 4 2 1 / 6 inch
5'x5' 6 3 1 1 6 inch
SE SERIES
SF Tent Size # of SE3000 # of SE5000 # of SE7000 # of SE7000-730w SF FAN COMBO
2’x2’ 1 / / / 4 inch
3'x3' 1 1 / / 4 inch
4'x4' 1 1 / / 6 inch
5'x5' 2 1 1 1 6 inch
Size Guide
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  • Description
  • Reviews (2)
  • Q & A
  • WHY CHOOSE US
  • SPEC
Description

【Latest Heating Film Technology】The 48″X20.75″ seedling heat mat comes with the most advanced design, quickly heat the root area by 50-77°F (10-25°C) above the ambient air temperature within 2 minutes. Compared with the traditional heating wire, the innovative far-infrared film heating speed is faster, the energy consumption is lower, the soft heat distribution is more uniform, and does not consume the moisture in the air, which is much conducive to the germination and rooting of indoor gardening.

【Premium Material & Reliable Quality】The seedling heat mat has a five-layer structure, the outer layer is made of heavy-duty PVC material, and the intermediate radiant far-infrared heating film is wrapped in a double-layer insulating PET layer, which complies with MET and UL standards, and has multiple protections. It is not easy to be damaged, safer to use, sturdy and durable, with a service life of more than 30,000 hours.

【Water-resistant & Quick Cleaning】It is made of soft but strong material with smooth surface. The IP67 grade waterproof material can prevent splashing and spraying. It is convenient to clean the heating pad by washing and wiping, which helps to keep the equipment clean and normal operation, without safety hazards, and prolongs the service life.

【Promoting Seed Germination】 The warm environment provided by a plant heating mat can accelerate the process of seed germination, allowing seeds to develop into healthy seedlings more quickly.

【Facilitating Growth】 The warm environment created by a plant heating mat helps to elevate soil temperature, facilitating the growth of plant roots.

【Extending Growing Season】In cooler seasons or colder climates, a plant heating mat can extend the growing season, providing growers with more time for indoor cultivation.

【Easy Temperature Control】With a temperature controller, the temperature of the heating mat can be easily adjusted, providing precise control over the growing environment. The temperature setting range is 40°F-108°F (5°C-42°C). The temperature display range is 32°F-140°F(0°C-60°C).

Heating Mat-1 Heating Mat-2 Heating Mat-3 Heating Mat-4-48x20 Heating Mat-5 Heating Mat-6 Heating Mat-7 Heating Mat-8

Reviews (2)

2 reviews for 2025 New Spider Farmer® 48”X20.75” Seedling Heat Mat and Digital Thermostat for Germination

5.0 Rating
1-2 of 2 reviews
  1. Scott F Nielsen
    Reviewer
    February 11, 2025
    Rated 5 out of 5

    Unbelievable product! I used this mat to keep my outdoor home deck grow cage warm into the fall. It kept my pots of living soil activily growing into late November in Minnesota! It ran for 3 months straight with no issues in very inclement weather! I will use it in the Spring to get out early! See how I did it here: https://youtu.be/jDl8Yg1cUj8?si=cJSS_sKnGze1LRW3

  2. Tom Fisher
    Reviewer
    January 8, 2023
    Rated 5 out of 5

    I bought this mat last year after my old wire loop mat failed. Wow. This has been a game changer. I struggled with vegetable germination in the past, and this mat has changed all that. “Don’t be fooled by cheap imitations” the old ads used to say. True here. I’ve turned several in my Gardening group onto this mat, and they’ve all loved it. The thermostat easy to use, and as advertised, consistent even heat throughout the surface. Couldn’t be happier.

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WHY CHOOSE US

1. Customer Satisfaction and Quality Products
Spider Farmer is a reputable brand in indoor and hydroponic gardening. Its products are widely used by farmers, hobbyists, and professionals. The company's mission is to help people grow healthy and vibrant plants in any environment. Spider Farmer continuously works to enhance and expand its product range to meet the evolving needs of its customers.

2. Best Prices Guarantee
Spider Farmer is committed to providing the best prices online for all our products. When you shop with us, rest assured that you are receiving the best online prices.

3.Enjoy Free and Discreet Shipping Across the USA
Our company is pleased to provide complimentary shipping to nearly every state in the USA, utilizing trusted couriers such as FedEx, UPS, USPS, and other reliable shipping providers. We understand the importance of privacy and will ensure that your package arrives discreetly.

4. Commitment to Customer Care
At Spider Farmer, we take responsibility for ensuring that our customers are always satisfied with their purchase. If anything is wrong, we guarantee to make it right, and you can reach us via call, email or message, and we will respond in about 1 business day or less.

5.Hassle-Free Returns and Refunds
In case your purchase does not meet your standards, we offer a hassle-free 30-day refund and return policy. Refer to our full return policy for details.

6.Dependable Global Shipping
We offer international shipping for all our products via FedEx, UPS, USPS, DHL, and other reputable couriers. To obtain a shipping quote, please proceed to the checkout process or get in touch with our customer service team for further assistance.

7. Buy Now, Pay Later with PayPal

Time and flexibility are on your side. Get what you want and break the payments up over weeks or even months.

8. Secure Payment Methods

We accept major credit and debit cards, PayPal, and bank transfers, and all card payments are processed through our encrypted SSL security processing system, ensuring that your identity is always protected.

Spider Farmer is dedicated to providing high-quality products and exceptional customer service to ensure a happy growing experience for all our customers.

SPEC

Heat Mat Specifications

Product Name Heat Mat
Mat Size 48″x20.72″ (121x52cm)
Input & Output Voltage 120V AC
Waterproof IP67
Heating Speed 2 minutes
Heating Area >60%
Heating Conversion Rate >90%
Max Load 1000 Watts
Max Amps 8.3A
Temp Setting Range 40-108°F (5-42℃)
Temp Display Range 32-140°F (0-60℃)
Power Cord Length 5.9ft
Material Pliable & Durable
Heating Method Radiant Far-Infrared
Application Heating plant seeds or seedlings in cold conditions

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