From other people’s posts, I understant that the US/110V version prioritizes the brew boiler over the steam boiler, with the Group heaters active from the start. As the brew boiler and steam boiler get to temperature in just a few minutes, the bottleneck remains the group heaters, which means that the warmup time is similar to the 220-240V version of the Evo Leva (i.e. around 16 minutes).
With the 220-240V version, from cold, all 3 heaters operate simultaneously… the brew boiler reaches its target temperature first, but the overall warm-up time is conditioned by the group heaters… thus it also takes 16 minutes to be ready to brew.
Yes, a pressure gauge for the steam boiler would be an additional safety feature, but it adds costs, complexity, and the machine is already protected by a blow off valve (among other things)… in the unlikely event of an undetected probe failure. I’m not sure how many people monitor the steam pressure in practice on reliable dual boiler machines with PIDs.
