| Hydrofarm Seedling Heat Mat | 
| Brand: Hydrofarm
Category: Kitchen
Buy New: $15.48 - $86.85 (On sale from $90.88)
as of 7/30/2010 02:33 CDT details
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Rating: 50 reviews
ASIN: B0002BSI10
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| Features:
| • | Self regulating | | • | Lighting and watering instructions printed on mat | | • | Germinates seeds faster | | • | Higher success with cuttings and seedlings | | • | Waterproof |
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| Editorial Reviews:
Product Description
These self-regulating heat mats from Hydrofarm keep temperatures 10 to 20 degrees F above the surrounding ambient temperature.
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| Customer Reviews:
Showing reviews 1-5 of 50
Insulate under the mat! April 19, 2009
J. DERAMO (MA, United States)
41 out of 42 found this review helpful
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.
Nothing like bottom heat! January 13, 2007
J. Mullen (Fort Worth, TX USA)
15 out of 15 found this review helpful
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.
Works like a charm April 26, 2008
L.E. (Flint, MI)
19 out of 20 found this review helpful
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.
Great for seeds, or as a footwarmer! November 22, 2008
Vermont Gal
12 out of 12 found this review helpful
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.
Unbelievable March 3, 2009
J. Nabors
9 out of 9 found this review helpful
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.
Showing reviews 1-5 of 50
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