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  • Hydrofarm MT10006 9-by-19-1/2-Inch Seedling Heat Mat
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Hydrofarm MT10006 9-by-19-1/2-Inch Seedling Heat Mat

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List Price: $24.95
Price: $20.56 & FREE Shipping on orders over $35. Details
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9 inches x 19.5 inches
  • Seedling heat mat for better veggie, herb, and flower seed germination
  • Warms root area 10 to 20 degrees over ambient temperature
  • Increases the success of seedlings and cuttings
  • UL listed, waterproof construction retains moisture for optimal safety
  • Includes 6-foot power cord, instructions; UL listed
  • Increases success of seedlings and cuttings
  • Light, watering and planting information on mat
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Frequently Bought Together

Hydrofarm MT10006 9-by-19-1/2-Inch Seedling Heat Mat + Hydrofarm MTPRTC Digital Thermostat For Heat Mats
Price for both: $54.51

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Product Details

Size: 9 inches x 19.5 inches
  • Product Dimensions: 20 x 10 x 3 inches ; 1.2 pounds
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • Origin: USA
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B0001WV010
  • Item model number: MT10006
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (507 customer reviews)
  • Amazon Best Sellers Rank: #970 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)

Product Description

Size: 9 inches x 19.5 inches

The Seedling Heat Mat uses 17 watts to warm root area 10 to 20 degrees over ambient temperature and improve seed germination and increases the success of seedlings and cuttings. UL listed, waterproof construction with six foot power cord.


Customer Questions & Answers

Customer Reviews

Perfect sized heating mat for seed starting tray!
Cody A.
It brews much faster in higher temperatures, and this heat mat provides 10 degree increase without ever getting dangerously hot.
cryptix
It really helps hard to start seeds like peppers to get plants ready early for the yard and garden.
NANA PATOK

Most Helpful Customer Reviews

433 of 438 people found the following review helpful By J. DERAMO on April 19, 2009
Verified Purchase
We are home gardeners and have tried many ways to provide bottom-heat for vegetable seed germination -- atop my always-on docked laptop was the most effective but the space was tiny. We bought a 20" x 20" heat mat and now have the right tool for the job. We set it up on a card table and found that it was not providing sufficient heat to the soil in the trays above. After an overnight on the mat, the soil surface was less than 10 degrees above ambient temperature. The room where the seeds are was 60 degrees overnight, and the soil surface in the trays was 68 degrees -- certainly not good enough for eggplant germination. I used an infrared thermometer (Raytek Minitemp MT6 here on Amazon) to check all temps. The exposed mat surface (no tray on top) was 82 degrees. I felt the surface on the underside of the card able and it was definitely warm, indicating heat loss downward. I wanted all of the heat to go up into the soil, so I cut a piece of rigid-foam insulation just slightly larger than the heat mat (22" x 22") and put it under the mat. Within 15 minutes the exposed surface of the mat was at 97 degrees and when I moved a tray to measure the temp of the mat beneath a tray, it was at 115 degrees. 2 hours later, the soil surface temperature was at 85 degrees. I am now confident the soil will get enough heat for proper germination, and I will begin using the heat mat thermostat to regulate soil temps based on the particular seeds we're starting (search the Web for "vegetable seed germination temperatures" to find one of the many reference charts available). We can also regulate temperature by covering or uncovering the trays to change the rate of evaporative cooling. We are well aware that covered soil is more prone to damping off/seedling death, which we now control with a spray of strong-brewed chamomile tea.
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72 of 74 people found the following review helpful By L.E. on April 25, 2008
Size Name: 9 inches x 19.5 inches Verified Purchase
I bought this heat mat to get my seeds started inside. Since my apartment is cold and seeds like heat I thought i'd give it a try. Three days after I planted my seeds I had a ton of sprouts. Nearly every seed germinated. If you need some extra warmth to get your seeds going definitly get one of these heat mats.

It didn't get too hot and I was able to keep it right on my countertop. My only problem was I should have had a light to put over my seedlings once they sprouted. It's very easy to use as you just plug it in and put your tray on top. The instructions are even written right on the mat itself.
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54 of 59 people found the following review helpful By J. Mullen on January 12, 2007
Size Name: 20 inches x 20 inches Verified Purchase
This mat does the job! If you have a couple of seed flats to warm, this mat will suffice. On the other hand, if you, like me, really enjoy starting plants from seeds, you may want a larger size mat (or more than one of this size). In any case, this one does exactly what it is supposed to do: it gently (and reliably) warms seed flats until the seeds sprout.
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33 of 35 people found the following review helpful By J. Nabors on March 3, 2009
Size Name: 20 inches x 20 inches Verified Purchase
The first time I have tried using a heat mat. I placed the mat on a sheet of 3/4" styrofoam insulation and set my covered seed trays on top. I planted presoaked seeds of tomato and pepper. In two days I had sprouts. This was in a cool (50 degree)greenhouse. The temp inside the seed trays was 80-85 degrees.
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35 of 38 people found the following review helpful By Andy in Washington TOP 1000 REVIEWERVINE VOICE on April 2, 2009
Verified Purchase
I have a tabletop greenhouse in my (unheated) garage, and I use the large version of this mat along with the thermostat controller to keep the seedlings warm. (I also add a 40w lightbulb in the winter to keep the air warm). My garage never really gets below freezing, but it can be in the 40's quite often.

The mat does a great job of keeping the bottom of the flats warm. In the spring, it gets the seedlings off to a quick start, and lets them grow without any setbacks from cool weather.

I also use it during the fall and winter to keep a constant supply of fresh garden herbs. Again, it does this quite well, although the 40w bulb helps keep the air warm.

It arrives rolled up, but within a day or so it lays perfectly flat. It seems reasonably well made, and my first one has lasted a year with no sign of problems. I am not sure how well it would do if left on 24/7, but since I use a thermostat, it is only on maybe 40% of the time during the cooler months.

Its a matter of choice, but I could do without the instructions printed in bright green on the top of the mat.

In summary, I love having seedling mats to jumpstart my spring growing, and the fresh herbs all year are fantastic. While I didn't really shop around too much for heat mats, these seem to work quite well. I suspect I could do better on price with another brand, but I didn't bother to when I bought the first one...and I will always go with a proven performer when I buy a second one.
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37 of 41 people found the following review helpful By Vermont Gal on November 22, 2008
Size Name: 9 inches x 19.5 inches
I have this heat mat and used it last spring for starting my seeds. I like that it only uses 17 watts of electricity - about the same as a compact florescent light bulb.

This fall, I discovered a second use for it. I put it under my desk at my home office to keep my feet warm -- I get cold toes in my 1850s farmhouse. Most toe warmers I've seen use 50-60 watts of electricity. The efficiency of this little heat mat is great.
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19 of 19 people found the following review helpful By Virginia Davenport on March 21, 2009
Size Name: 9 inches x 19.5 inches Verified Purchase
How great it is to be able to look out the window at three feet of snow on the ground and see seeds beginning to show growth. How could I do with without a heating Mat. It makes the long winter bearable. The product lives up to it's claims.
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