VIVOSUN 10"x 20.75" Seedling Heat Mat and Digital Thermostat Combo Set, UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse

Easy to set up and adjust target temperature. The mat maintains the preferred temp and I was pleased to see the quick results of my seedlings.

Bought VIVOSU Heat Mat with external controller & temp probe to use with Ferry Morse seedling tray & seedling containers. Also using blue & red LED hanging light, not shown Added Ferry Morse humidity dome. VIVOSUN mat under tray. Probe from controller inserted into one container at a time. Display can stay on continuously for easily walking into room & immediately seeing soil temp. Display & controls are very visible & easy to operate correctly. Obtaining very good seed growth due, in part, to good warmth contribution from mat. First bought VIVOSUN mat w/o probe. Controller was not controlling heat accurately. For a test, set to 100 deg F on setting display. Actual mat temp display showed 100 degrees but could touch mat & it was only slightly warm. Also, power cord inside mat, on top, on that mat protruded above overall mat height towards center. Required adding cardboard shims on cord side to have level tray with consistent temperature & light. Returned 1st mat and bought Seedling Heat Mat and Thermostat Combo Set. Delighted with performance of Combo Set!

I use this heat mat and thermostat as a sourdough proofer, and it works fantastic. I set it up inside an old soft cooler with a small rack to hold my jars and dough, and it creates a perfectly controlled environment. The thermostat maintains a consistent temperature, which I’ve confirmed by checking the internal temp of my starter and dough. It’s reliable, easy to use, and does exactly what it should. This is a very effective and economical alternative to expensive proofing boxes. Highly recommend for sourdough baking.

When I received the Vivosun heating mat, I initially set it up in my kitchen and set a small container of pepper seeds on it. I set the thermostat to 80 degrees Fahrenheit, which is a good temperature for germinating pepper seeds. The thermostat did a fine job of keeping the soil temperature to the set temperature. I have no complaints with the Vivosun mat and thermostat. Other purchasers complained that the mat did not lay flat, but I did not have that problem. Next I set up a little propagation station on my patio. I set a Jiffy tray on top of the soil heating mat, and put my planted peat pots in the tray. Once again, I set the thermostat to 80 degrees. Initially I left the tray uncovered. I discovered that without a cover the soil temperature in the tray was virtually the same as the ambient temperature of 60 degrees. I put the plastic cover on the seedling tray, and the soil temperature rose to about 78 degrees. Without the cover, it seems that the heat from the mat just radiated out into space. With the cover on, the unit was not able to achieve a temperature of 80 degrees unless the ambient temperature was about 65 degrees or higher. The mat is low wattage which means that it can only produce so much heat. It is not designed to be used in the way that I am using it, so I cannot fault the product. When used outside, it does provide some benefit by raising the soil temperature by maybe 10 or 15 degrees. Where I live, this can be enough to prevent plants from freezing on a cold night. However, for the purpose of germinating seeds, the Vivosun really needs to be used indoors where the ambient temperature is not less than, say, 65 degrees. Unfortunately, I do not have the space in my small house. I should mention that my pepper seeds are sprouting nicely even if the soil temperature is a bit less than optimum. I will probably look around to see if there is a soil heating mat with a higher wattage. I saw an ad for one from a hydroponics company that appears to be aimed at cannabis growers. Of course that unit is much more expensive than the Vivosun....

Well, after returning 3 heat mats for various reasons, I finally found this one that works like it should! 🤞The size is perfect for my seedlings, the digital thermometer is easy to use, and it functions well so far. It distributes the heat pretty evenly. I think it's worth the price. This heat mat used along with my grow light, (not shown), hopefully will germinate my Parlor Palm seedlings quicker than usual. Time will tell if my seedlings sprout in a couple months. I will update then. For now, I do recommend this heat mat.

This heating mat is definitely not like most heat mats. I bought me in 2022 for sitting my epoxy on to keep it warm so it produced less bubbles. I would have to say this may here is very useful for many things. The mat is very sturdy, I bought some different mats this year and they are just garbage. The mat is flimsy and wavy, that’s why I just bought another one of these mats. The size of this mat is exceptionally large, it holds all my epoxy bottles and I do have a lot more than 10 and still have room for more. The material is very strong and durable, you don’t have to worry about tearing up this mat because it will outlast the digital thermostat. The heating performance is amazing, the good thing about it is you can control the temperature. One thing I will say be aware that after a few years (or at least mine did) the thermostat started acting finicky it would show the display and sometimes it wouldn’t. It maybe on or may not. I had this mat for a couple of years before it started acting weird so I put it in the trash and didn’t get another one until now. I wish I would have ordered one way sooner, I wouldn’t have been fighting bubbles like I have been in my epoxy. As I said earlier the material is very strong a durable, and you definitely get your moneys worth in this mat. I am very pleased with my purchase I made.

I have 10 gallon glass tanks set up as terrariums. Since the substrate stays moist at all times, this gently heats the soil slowly. It's just a backup/booster as the house gets cold in the winter. It will not keep the air in the terrarium warm, but it does keep the soil warm. (which is how it's designed - a low and slow heater, which works best on water due to it's high heat capacity) Placed under the tank, with the soil probe set to "70F" it kept a range of 68-72F in the soil even if the room is 60F. My substrate is 4-6 inches deep, well aerated, and kept moist. Surprisingly, it works on tanks that have 4 little feet raising the tank up. (such as the Thrive brand 10 gallon open front vivarium tank) I assumed all the heat would simply rise up, hit the bottom of the tank, and proceed to leak out the sides. Without any significant warmth added to the soil. But it actually warms the soil just fine. Remember that very cold water shouldn't be poured into a glass tank with a heater touching it, because the temperature difference could crack the glass. That being said, these heaters heat very gently, without touching the glass (in my set ups), and I pour room-temperature (60F) water into the tank to water the soil. Pro - if you hang the controller up, you can easily see the current temperature of the soil reported by the soil probe. Downside - it's not quick/easy to change the temperature setting. It is a strange design, where you do NOT press the up or down arrow buttons to adjust the temperature up or down. Instead, you must hold down the setting button for a long time until it blinks. Then press up/down buttons to chose the temperature goal. Then hold down the setting button for a long time until it goes back to showing the current temperature.

Seems like a good quality product, only had it under the seedlings for 2 days and got a bunch to sprout. I only had one before that. The thermostat works great, the temp is off by a half degree but that's not any problem. Great heat mat for the price

ich habe es gekauft um den Akku meine PV Anlage im Winter zu wärmen und im betriebs Temperatur zu halten. Der verbrauch von der heizmatte war unter der erzeugte Strom von PV Anlage somit hat es sich selbst er heizt.. TOP

Pad y termostato muy buenos

Had this heat mat for just over a month now. It’s fab. Controls the temperature for my chilli’s and sweet peppers great! Really happy with it! Will be ordering another for my tomato’s

Excelente

Excellent heat mat. I use it to propogate my chilli plants, and the thermostatic heater ensures a consistent heat it maintained. Easy to set up, and easy to program the thermostat.