when i put heater on my predicted range drops by 40/ 50 miles instantly, but goes back up when you switch it off again, so i dont think using it is particularly as wasteful as with ice vehicles. electric seat and steering wheel dont affect range at all oddly.
Current Car: Hyundai Kona Premium EV...2 way 40kg hoist
Last Car: Toyota C-HR Excel Hybrid...4 way 80kg hoist