Good, but not great
I have owned a carboy heater for years, the plastic sheet type. I can control the temperature of my fermentation by wrapping it tighter to the carboy, or by letting it hang a little loose.
But since I've been making a lot of beer and wine of late, I needed another heat source, so I thought that I would try a heat pad.
So how has it performed so far? Sitting a glass carboy of fermenting beer on it, it actually gets too warm. So I have been controlling the heat by putting wedges under the carboy to limit how much contact is made with the pad.
Also, the size of the pad is much larger than a carboy, so a lot of heat is lost.
On the other hand, when fermenting wine, this heat pad is not quite warm enough. My plastic wine fermentation bucket only gets to about 72 degrees, just a wee bit short of what I would like, but with a little insulation I bet that I could get it to work just fine.
The heat pad isn't bad, but in hindsight, I would have purchased another plastic sheet type heater.
I suppose that with a temperature controller I could really dial this pad in to what I want. But at this point I just don't want to throw another $80 at this issue. Perhaps a few months down the road.
Reviewed by: Alex Gonzales