I got an electric kettle for Xmas, a 35L DigiBoil, and it just does not produce a hearty boil. Nor even a weak boil. Today is only the 2nd time I've used it, and both times it won't go past 211 (I set it for 220 or 240 or 250, does not matter).
It rolls, shows a healthy convection movement coming from below, but no bubbles nor waves nor breakers. It doesn't seem to get a hot break AFAIK, none of that crazy monster foaming that I have to stir down or spray-mist when I boil on the propane burner. Is it enough, if it is rolling over at 211 for an hour?
The only other beer I have made with it is a dunkel, which I haven't tasted yet (probably still too young), but the wort going into the fermenter looked unexpectedly clear (for a dunkel), and the final beer going into the bottles also looked crystal clear even without a cold-crash.
I'm at 84 minutes on the boil so far (I usually only boil for 40-55 minutes) and the evap rate is just lame.
I am using a neoprene insulation jacket on it this time, I didn't use one on the first boil. The insulation just doesn't make it any hotter, AFAICT.
ETA: yes, both switches (1000watt, 500watt) are on and both are lit up.