So because it was too hot, you went and crippled the Bolt's HVAC system by turning on recirc.
Which I've already established will IMMEDIATELY (within seconds of pushing the button) spike the heater's power way up.
Thus making comparison of the Bolt's system against your setup COMPLETELY invalid.
In your shot, you've got an ambient temperature of 43F ambient. There's no way in **** you're seeing 2400W average unless you either opened the windows or disabled recirc.
I get far lower average power consumption at only 20F ambient.
what the h are you talking about ... I have tried with recirc without recirc...the only thing recirc does is uses the interior air and "recirculates" it . Using LESS energy to maintain heat best it can
When I turn off recirc on PTC then I also leave it off Cars heater... all things equal.