We're planning on installing this Harvia Cilindro 10.5kW Electric Sauna Heater (Model HPC11-U1H) when it gets here.
The manual wants us to put a 50amp breaker in the main panel, and then run that to a sub panel with 2 40amp breakers, before finally connecting them to the power unit box for the heater/controls.
My question is, could I skip that 50amp breaker part and just install the 2 40amp breakers directly onto my main panel? My main panel is 200amps and has plenty of room for more breakers, and both the main panel and the sauna are in the garage so there's no benefit to me installing a sub panel there as well (unless this is a dumb idea and I'll burn my house down unless I do it).
Pictures for reference. Thanks!