SKU: 55111481192

Commercial Heat Mat Master / Add-On

Sale price$128.69 Regular price$142.99
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Description

Commercial Heat Mat Master / Add-OnGerminate Seedlings Faster! Propagate all your new seedlings using Seedling Heat Mats to ensure the perfect environment for newly established root growth, plant cuttings, and germinating seeds. Heat mats are designed to reliably warm the root zone between 10 20F above ambient air temperature. Want to learn more about heat mats? Read this how to article about how to use heat mats for seed starting. Available as a Master or Add On unit to allow for

 

Germinate Seedlings Faster!

Propagate all your new seedlings using Seedling Heat Mats to ensure the perfect environment for newly established root growth, plant cuttings, and germinating seeds. Heat mats are designed to reliably warm the root zone between 10-20˚F above ambient air temperature. Want to learn more about heat mats? Read this how-to article about how to use heat mats for seed starting.

Available as a Master or Add-On unit to allow for daisy-chaining.  ****You must have a master heat mat to use an add-on.*** 

Usable with our digital heat mat temperature control.

Features

  • Patented double-layer 
  • Link up to 4 Mats together
  • Increases propagation success rate
  • Easy to Clean
  • Waterproof
  • Warms root zone to an optimal temperature
  • 6-foot power cord
  • UL-listed
  • 60" L X 21" W
  • 120 VAC
  • 150 Watts
  • 50/60 Hertz

How to Use a Seedling Heat Mat

Heat mats are a great tool to use for winter germination. It is ideal to use Heat Mat Controller with the heat mat for more precise control. Heat mats are waterproof and easy to clean, so there is no need to move plants off the mat during watering. The mat is designed to stay on 24hr/day. Connect multiple mats by 21" daisy-chain connecting add-on mats. Ideally, you will want your soil temperature to stay consistently between 65˚F-80˚F. Check out this helpful video for more info on how to use your heat mats.

Benefits of Using a Seedling Heat Mat

Seeds love warm, moist environments during germination. Being able to provide those temperatures earlier in the spring means earlier tomatoes at the market. Want earlier pumpkins? They need to be at least 85˚F to germinate. Heat mats can provide those perfect conditions, increasing growth rates. Being able to cycle through propagation in nearly half the time may mean more crops end up in the ground. Seedling heat mats are also useful in microgreen production.  Add heat mats into your production for more successful germination rates.

Optimal Germination Temperature Chart

Crop Optimal Soil Temp. Germination (F)
Bean, Snap 80˚

Beet

85˚
Broccoli 80˚
Cabbage 85˚
Carrot 80˚
Cauliflower 80˚
Chinese Cabbage 85˚

Collards

70˚

Kale

70˚

Leeks

70˚

Onion

75˚

Parsnip

65˚

Pepper

85˚

Pumpkin

90˚

Radish

85˚

Spinach

70˚

Squash

95˚

Swiss Chard

85˚

Tomato

85˚

Turnip

85˚
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 55111481192

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4.8 ★★★★★
Based on 13 reviews
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Product Reviews
E
Verified Purchase
EEMD
Belleville, US
★★★★★ 3
Quality Assurance Lacking
Color: White, Size: 15.7 Inches
The first set I ordered was great; super easy to install, no issues. The second set I ordered the holes on the bottom of the shelves did not match up with the holes on the bar that secures the shelves to the wall so it was impossible to attach the shelves correctly. I'm still trying to figure out a solution. TO SUMMARIZE: First set perfect; second set unusable
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Reviewed in the United States on May 2, 2026
L
Verified Purchase
Lou Woodward
Dallas, US
★★★★★ 5
Worth it if you're a figure/doll collector!
Color: A. Black Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch, Color: A. Black Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch
I ordered these shelves to display my figures and dolls, and I love the way they look! I ordered 2 sets of the 4 pack in black with black hardware. After looking at reviews, I took the jump and bought them and don't regret it! TL;DR: Listing is accurate, don't use the paper measurement thingy, quality is what you'd expect for the price, doesn't come pre-drilled, easy enough to put together, over all worth it if you're looking for smaller, decent quality, decent price shelves especially if you display figures or dolls. 1. Listing: They are accurate to the measurements! They're only 5.5 inches deep, so there isn't much (if at all) any room for layering. They do feel small, but the listing is accurate!! Mine are paired next to each other to create a "longer" shelf. DO NOT use the paper measurement thingy. Another review mentioned it was un-even, and after holding it to mine, yeah, it was off. I'd highly recommend a stud finder, small leveler, and a white gel pen or marker to mark where to drill if you do. 2. Assembling & Mounting: The shelves didn't come with pre-drilled holes for the mounting options because it was easy enough to screw into. I will warn you that the small screws only came with a singular extra, so be careful about losing them in case it's the same for you... I'd highly recommend doing this on a FLAT surface. I stood the shelves on the side that would be flat against the wall and set the brackets against it. I put one screw in on each side (both brackets have 1 screw to hold them where I want) then I laid it on its top and tightened and added the other screw. I may have done more work than needed, but none of mine are leaning forward or backward super far. I used the "load bearing" mount simply because I like the look but if you intend to put books, I would do the "no drop" design and possibly get some other L brackets for more support since books can get heavy. PLAN WHERE YOU WANT THE BRACKETS if you intend on doing the "load bearing" design or adding any more brackets. 4. Quality: I kind of expected the wood to be a bit thicker/more sturdy feeling, but upon realizing they didn't come pre-drilled, it made more sense. THEY CHIP AND SCRATCH EASILY. If you're like me and don't really care as long as you cant see/don't notice it, then this isn't any concern but they may come damaged cause some of our mail couriers aren't the best. If you stick them in the corner like I did, please be careful about it slipping! I accidentally dropped the second one from a 21-inch TV stand after adding brackets, and the corner chipped (yes, I measured). The hardware is standard screw quality, and the brackets could be better. After reading the broken bracket reviews plus the price, I honestly wasn't expecting much, but they aren't too bad! You can always replace them with another one you like! 5. Overall: I'd say these are worth the price and I see why "customers usually keep this item"! They were easy enough to mount, even if you aren't the handiest man out there. I'd definitely recommend these if you're looking to display anime figures or dolls like I do! They're nice for adding vertical space without sticking out of the wall too much! Definitely good for smaller spaces! I'm very happy with this product and will more than likely return to this listing if I want some decent and affordable shelving! Thank you for reading my review, Im usually hesitant to buy online so I hope it helps you decide if you wanna buy these shelves as well! (Also, in case anyone is wondering the layout, the longest shelf will be 1, the middle length will be 2, the shortest length will be 3. It's the last image of the review!)
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Reviewed in the United States on August 8, 2025
I
Verified Purchase
Isabel Hernandez
Waukegan, US
★★★★★ 5
Stylish, Sturdy and Perfect for Small Spaces
Color: A. Black Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch, Color: A. Black Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch
Love these shelves! They are sturdy, easy to install, and perfect for organizing bathroom essentials. I used them above the toilet, and they fit perfectly in a small space. They helped me keep things organized while also adding a modern and decorative touch. Great quality and very functional. Highly recommend for anyone looking to upgrade their bathroom without taking up extra space!
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Reviewed in the United States on May 5, 2026
A
Verified Purchase
Ash Wallace
Carnegie, US
★★★★★ 5
Pirate ship shelves bathroom - perfect!
Color: C. Rustic Brown Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch, Color: C. Rustic Brown Board & Black Brackets, Number Of Shelves: 4, Size: 16-inch
Love these shelves! I ordered them to match my "pirate ship" bathroom theme. They are solid and the wood is finished on all sides. My husband had no issue installing them. The only thing he found odd was the 15/64 drill bit it recommended. That's an odd size. The shelves look great and hold all on my stuff really well!
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Reviewed in the United States on May 23, 2026
J
Verified Purchase
J23
Bozeman, US
★★★★★ 4
Amazing little shelves
Color: G. Black Board & Gold Brackets, Number Of Shelves: 4, Size: 16-inch, Color: G. Black Board & Gold Brackets, Number Of Shelves: 4, Size: 16-inch
I love them! I use them in my nail room for clients and to hold my product. They are sturdy enough to put phones, keys, and their water bottles on. Being able to hang them in different ways is awesome for different aesthetics.4 different sizes. Easy to put together it came away with all the hardware you need. My only complaint is that the wood fills rough so not really able to dust them. I have to fix that
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Reviewed in the United States on April 18, 2026

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