Hi
@KegLand-com-au, the 35 l Brewzilla extension is listed as adding 12 l capacity. But by my measurements it seems the increase in volume is more like 14 l. Can you please confirm?
I use an extension on a digiboil as a boiler in a 3V system, and since it had no trouble reaching a boil I decided to add another extension to squeeze out a bigger batch. I measured volume as 35 + 12 + volume mark on upper extension, but was surprised when I ended up with more wort than anticipated, and a lower gravity. After cubing I measured the height from bottom of digiboil to the extension volume marking and calculated a greater volume.
Greater capacity is great. And this batch won’t suffer from a lower gravity and bitterness. But it would be good to be more accurate when planning my next brew.