Fermentation Heater Carboy Warmer - Kombucha Heating Wrap with Thermostat for Temperature Control - Electric Heat Pad Belt for Home Fermenting & Brewing - Fits Most Fermenter Vessels 2 to 8 Gallons

This product works better than other more pricey setups! Now that I have used this product for just over a year including the end of last winter and the beginning of this one I feel it is an appropriate time to offer a review. I have two different warming wrap setups for brewing beer. I have an ink bird and a very common warming wrap available through Northern Brewer. Ultimately that setup costs between 30 and $50 more than this. I just checked on the operation of both and this is outperforming it easily. Unlike the other setup this actually keeps the temperature within a degree or two of the set point. The other allows it to fluctuate almost 5°, which with yeast has a large effect on it. When powered on at first to bring the fermenter up to temperature it is noticeably warmer than the other allowing for a faster adjustment to the Target temp. I use this in combination with a Carboy wrap to help hold the heat in and the brewery typically is around 45° and this holds at the 69° set point with little effort. Would definitely recommend this product and when I decide to purchase another setup it will be this over any other option! Happy Brewing!

I use it for fermenting my Kveik Beers and it's been great! Can keep temperatures as high as I want. Fits my two different stainless 6.5 gallon fermenters easily.

works great

I required a heating mat that I could wrap around a 3-gallon kombucha brewing vessel. The vessel is basically a glass cylinder with no tapering and a stainless steel spigot at the bottom. It's 15" tall and 29" around, so the 11"x32" mat size wraps around it with just a little overlap. It sits just above the spigot, but with a couple inches to spare on top for the rubber band that holds the cloth over the top in place. I will say that the rubber bands that came with the heater don't work for much besides storing the mat in a rolled position. I needed a much larger band to wrap around my container. Since this mat is designed for up to 8 gallons, I'm not really sure what they meant by using the included rubber bands to keep the heater wrapped around the vessel. The included bands would struggle with a gallon jug, and the mat is far too large for that size. Another point to note is that the probe should be placed UNDER the heating mat. I attached the probe via the suction cup a position just below the mat, and secured it (to ensure direct contact) with a small piece of masking tape. The thermostat registered 80 degrees, but a check of the liquid temperature indicated 100 degrees. Yikes! I repositioned the probe to underneath the heating mat and let the temperature settle, and that resulted in a very accurate temperature of the liquid/thermostat. I set the thermostat to 78 degrees. When it dips a tenth of a degree below 78, the heater kicks on. When the temp reaches 79, the heater turns off, but the temperature continues to rise to mid-tenth degrees before it starts to drop back, keeping my kombucha in that 78-80 degree sweet spot. I'm very happy with this heater so far. The mat is thin, not at all bulky, but sturdy. The cords are heavy-duty and of sufficient length. The thermostat is easy to use and very accurate (provided it's place correctly, lol). It's definitely a critical component of my continuous brew kombucha setup.

I was hesitant to try this, but am pretty happy with it. I am considering getting another one. I ferment beer and wine in my garage in Alaska, and to save heating costs I keep the heat low in my garage. This has really helped me keep carboy temps consistent. The temperature controller seems to lag a bit on shutting off the heat, I suggest setting it about 2 degrees cooler than you want. Yesterday I put an old fleece jacket over the carboy with the heater and sensor under it, this seems to do better, but the carboy temp is still a degree or two over what I have set. This seems consistent and is easy to compensate for. The only real complaint I have is the rubber bands that came with it to wrap around and secure the heater to a carboy sucked and I threw them away almost immediately. I have been using duct take to keep the heater on a carboy.

This was a game changer for me for brewing.. In the winter, the space I ferment in tends to get on the cooler side, 45-60F(7-15.5C) and higher ABV ferments even with the right yeast can stall out. The jacket was a perfect size for a 6 Gal carboy with a small gap. They provide two straps for holding it onto the carboy. If you tuck the thermocouple into the strap, away from the wrap in the gap, it measures the temp just fine. It's not necessary to use a through cork probe. I did Wrap the whole carboy in a blanket for temp control, the wrap is only 45 watts, so in a really cold space, it was struggling to keep the temp at 70F(21C), I wrapped the whole fermentor with a blanket, it was set to 70F and held 70F with only minor cycling in a brewing space that was 50F. Sped up the fermentation quite a bit, and the tastes are good so far on my brew...

I love this heater. I wish they still sold them.

My 2 gal. glass kombucha vessel is small enough to place in my house in a combined water heater and HVAC closet to help keep temperature of fermenting liquid close to the ideal 78-81 degrees for brewing. However, that vessel is now being used by my SCOBY hotel. So I bought a 4.7 gal. hammered glass vessel with nowhere in the house to keep it at proper brewing temp since the weather turned "cold" in late fall/early winter here in Southern California. The vessel is too large to fit in the HVAC/water heater closet. I turn the thermostat to our central HVAC down at night to at least 68, then up to 74 or 75 degrees during the day/evening. The is not warm enough to raise the temperature of my fermenting kombucha, which has been consistently 68-71 degrees day and night no matter how warm I heat the house to (as high as 76-77, but normally 74-75. Wrapping a heavy blanket around the vessel seemed to only keep the ambient temperature of the room out/away from the vessel. So I bought this Kenley Fermentation Carboy Heater with Thermostat - Kombucha Heating Kit and hooked it up yesterday evening. What a Godsend! I have the thermostat set at 80 degrees and while the temp on the thermostat fluctuates 1 to 1.5 to 2 degrees, it's keeping the adhesive strip thermometer on the outside of the glass in a very acceptable range of 78-80 degrees! Just what I wanted/needed. This is worth every penny I paid. My SCOBY has "taken off" in less than 24 hours!