I get it. Another suggestion: try using a more energy efficient personal heater (I use a dyson cool + hot ). You could still figure out the wattage of your in unit heater and compare the savings to a personal heater, but this is an easy way to forecast your monthly usage and cost. I worked out a good blend of using my personal heater and vented heat to maximize comfort and cost.

I would explore this once you speak with PSEG and rule out an incorrect reading.

Bonus: They sell crypto mining heaters now and I’ve heard it covers the usage of the heater (one of my friends just got one which made me think of it, but personally I like my Dyson)