Features:

  • RELIABLE RESULTS: VIVOSUN's professional heat mat maintains temperatures in the sweet spot of around 10℉-20℉ above ambient air temperature - perfect for seed starting and cutting propagation!
  • BUILT TO LAST: Supple, flexible and ultra-durable, VIVOSUN goes beyond stringent MET standards, with a fortified connection between mat and power cord, water-resistance that enables safe scrubbing and a 1-year warranty.
  • STABLE, UNIFORM HEAT: VIVOSUN's strengthened Alloy Nikrothal heating wire and extra layer of insulating PET film ensure this durable mat never scorches your roots and produces lots of revitalizing dew when used with a humidity dome.
  • BEST SAVINGS IN THE MARKET: This 3" x 20" mat is perfect for small spaces, like countertops and windowsills ; it also runs on only 6.5 Watts to help you save on electricity.
  • PLANTS' BEST FRIEND: Works perfectly for spring seedling starts, in the winter or any time your plants need a heat boost, also for brewing and heating your kombucha, kimchi & yogurt.
This Mat Heated My Plug Tray Perfectly, But With One Modifcation

This seed mat works perfectly for my purposes, but it runs warmer than I needed so I had to make some adjustments. My ideal temperature for germinating the seeds on my plug tray is around 80F, but simply resting the plug tray on top of the heat mat ended up heating the germination medium to about 90F! The ambient room temperature was around 68F. To adjust, I placed four bolts on all four corners on my plug tray (raising it about 1/4 inch above the mat) to create a small air-gap. This lowered it to about 85F, so I also placed a towel to distribute the heat differently. In sum, this heat mat works well, perhaps too well, so be sure to regulate the temperature accordingly. Most seeds don't fare well past 85F.

I use this for making 2 gallons of continuous kombucha

I use this for making 2 gallons of continuous kombucha. It is cold in my house so I needed a heat source of some kind I use this wrapped around my jar set up with a timer to keep it at a perfect 75 degree temp. Its perfect for my set up! The product seems like a nice thick good quality similar to reptile heater pads, the cord is super long way longer then reptile heater pads so this was Ideal for where I have it located (no where near a plug). Overall I'm happy with this purchase.

Working just fine--maintaining a proper temperature. Seems to be good value!

This heat mat is providing just the right amount of heat for the pepper seeds that I'm trying to start indoors. Now, if I had wanted to set up my trays out in the garage, this mat would not be adequate in bringing the temperature up high enough. My seeds supposedly need 75 to 85 degrees Fahrenheit to sprout. The mat brings the ambient air temperature up about 20 degrees, and in my house, the temp is usually about 65 in wintertime. So, temperature decided where to place my trays. These mats come rolled up and are a bit stiff. But heating them and the weight of the tray straightens them out. My grow light needs a three-prong plug, but this mat only needs a two-prong. Cord is plenty long. It's not a heavy duty plastic, but for inside a home and tucked out of the way, I don't see that wear and tear will be a problem.

These are great! I do not have a temperature control on ...

These are great! I do not have a temperature control on them, they are just plugged straight in. They are just barely warm to the touch. I have them in a greenhouse on a wire rack with a plastic shelf liner on the rack to create a solid surface for the mat to sit on. I planned the seeds on 3/4 (the first picture), today is 3/10 (the second picture) . I live in the Seattle area, it is still freezing at night, and it snowed two days after I planted the seeds. But, several veggies are already sprouting.

Great when used under a Cookie Cooling Rack.

Like others have mentioned you will most likely need a temperature control device to keep from overheating your plants. I had the heating mat on granite countertop and the jiffy seed germination tray directly on the mat. Under the tray it was reading 97F and soil temps read anywhere from 90f-94f. I tried to use my Johnson controls temp control but it’s set up for homebrewing cooling controls and I couldnt get it to work. I placed the heating mat on the granite counter and placed a cookie sheet over the heat source to elevate the seedling tray. Results are perfect. This morning I was happy to see soil temps from 81-85F. Long story short you only need to find a way to lift your seed tray to keep it off the mat to get your needs. Ambient room temp was 75F FYI. I might try a folded up shower towel or try removing the cooling rack underneath and just have the separation on top.

Great for keeping kombucha warm.

I love this thing! I use it to keep my kombucha nice in warm in these Midwest winter conditions. My brew seemed to be dormant and I was really concerned I would have to throw it. I bought this mat as a last ditch (no pun intended) effort to keep it alive and I now have 5 brews going strong and am bottling weekly! I usually keep it plugged in for a week then unplug overnight and plug it back in. I don't know how much electricity it uses and have some concerns but not enough to turn it off. It's worth it to keep my buch happy. Excellent investment for kombucha brewers.

GET THE CONTROLLER TOO

This has done exactly what it's supposed to. Keeps my kombucha the perfect temperature, but make sure to get the "VIVOSUN Digital Seedling Heat Mat Thermostat Controller" so that you don't have to make sure its overheating. The mat itself will not shut off and supplies constant heat without the controller.

Works great if you buy a thermostat to use with it.

Seedling heat mats DEFINITELY increase germination rate, but you also need a seedling heat mat THERMOSTAT to go with it. I killed off and/or prohibited germination of many of my first round of seedlings due to having a seedling heat mat with no thermostat. They just got too hot. If you decide to use a seedling heat mat, do yourself a favor and go ahead and invest in the thermostat too. When I FINALLY broke down and got the thermostat, I had about a 95% germination rate. I had 100% success with my Jalapeno's which I hear are notoriously difficult to germinate. The most finicky to germinate was the Brandywine Red, and I'm just going to blame that on the seeds/type of plant because of the 6 or 7 seeds I planted, I only got 3 to grow. But everything else (squash, zucchini, San Marzano's, Sun Golds, Cucumbers, and bell peppers) germinated splendidly! I used this thermostat with it... https://www.amazon.com/gp/product/B015F4VFGI/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1 The picture shows Day 5 after planting the seeds. So it's obvious they took off quick with the heat mat. :)

Made such a wonderful difference!!

I bought this with the intention of using it as an under tank heating pad for my leopard gecko, and it fit perfectly. I was concerned that he wasn’t getting enough warmth from his lamp because he would always be in his hide. I’ve had him for a little over two weeks and he had hardly eaten, wouldn’t come out, was terrified any time we looked in his direction. I genuinely think adding this to his set up made such an amazing difference. Since putting the pad in, he has had a good shed, started eating a lot more, he hangs out outside of his hide, and this morning he pooped for the first time!!! He seems so much happier since getting his heating pad. This might sound kind of silly because it’s a heating pad for a lizard, but he’s my first lizard and this was probably the best $13 I’ve spent in a really long time, worth every penny. More practical information, the pad is very sturdy and decently thick. It feels like it’s strong enough to last a while and the heat stays consistent. The cord is a nice length, but where it meets the pad is a little block that makes the tank wiggle a bit but that’s easily fixed. Great buy!!!

Works perfectly!

At first I thought this wasn't even working because it didn't feel noticeably warm. But then after leaving it on overnight under a filled seed tray, I could easily feel the warmth. It's such gentle heat that it just takes a while to get the soil up to temperature, but once it does, it creates a good 15 degrees F or more difference between the soil temperature and the surrounding air temperature. Last year many of my seeds failed to germinate and I suspected that they rotted in the cold damp soil. My house just isn't warm enough in late winter/early spring to get seedlings going. But this product kept the soil pleasantly warm to the touch, and I had seeds sprouting in just two days! Then the seedlings grew like gangbusters in the warm soil--in fact, they grew so fast I had to take the heat away so they wouldn't get too big before it was safe to transplant them to my garden! One tip I learned: the heat is of course going to be highest in the middle of the seed tray, and the cups along the sides that are more exposed to open air will be coolest. So it's a good strategy to plant heat-loving seeds (tomato, pepper, eggplant) in the middle and cool-tolerant seeds (spinach, broccoli, lettuces, radishes) along the sides. Also, since this speeds up germination and growth so much, you might want to plant a little later than you usually would! Otherwise, like me, you might get plants actually starting to blossom in your window in mid-April!

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