Liquid Graphite Heating Mat

4.89 stars, based on 61 reviews 61 review(s). | Write a review

This under-tank style heating mat uses liquid graphite to evenly heat the surface with no hot spots! Traditional heating pads use wires, which can lead to uneven heating and hot spots which can dry out your substrate. With infrared heating, it transfers heat through the solid objects and will not heat the air like traditional heat mats. This powerful heater only uses 28 watts of electricity but is equivalent to 200 Watts of heat. The adjustable dial allows for precise sustainable temperature control.

Features:

High powered heating core equivalent to 200 watts of thermal heating
Size 21" X 11" (L X W)
Under tank design
No hot spots
Fully adjustable heat settings from 67-86 degrees
110-120V ONLY

Retail: $27.99

Price: $19.99

You Save: $8.00 (28.6%)

Points to Purchase:1999

Points Earned:100

Bonus Points Earned:0

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Item #: HM1

Availability: In Stock
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Description
Reviews (61)

(2025 SALE!) This 21"x 11" under-tank style heating mat uses liquid graphite to evenly heat the surface with no hot spots! Traditional heating pads use wires, which can lead to uneven heating and hot spots. This powerful heater only uses 28 watts of electricity but is equivalent to 200 Watts of heat. The adjustable dial allows for precise sustainable temperature control with no hot spots!

Overall Customer Rating of 61 Reviews:

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David T

Performs as advertised

2/6/2025

Rating:

Pros:

Consistent heat

Cons:

No thermostat and heat sensor prob

Mat seems to perform well. It's disappointing that it doesn't come with a digital thermostat and probe. I used my seed mat prob to dial it in. Once dialed in, it seems to keep consistent.

I put it under dubtub setup that has incontinence pads loaded with water, bakers rack on pads and shoe boxes on rack. Mat keeps it at consistent 77° and warms incontinence pads making it humid.

Cory

Works like it should

12/6/2024

Rating:

Pros:

Cons:

Good stuff, good service.

Jon

Heating mat

11/24/2024

Rating:

Pros:

Heats up fast and holds steady temp

Cons:

No indicator on temperature dial

Works great, really sped up the growth of the mushrooms. Just wish there was a temperature indicator. Other than that, works as should

Mark

Idaho

Heating mat

10/18/2024

Rating:

Pros:

Price and quality are acceptable

Cons:

None yet

This product works as advertised. I really like the adjustable heat which is critical for optimum growth

Top notch

4/29/2024

Rating:

Pros:

Cons:

Great product fast shipping