Since it's below 10 celclus, I noticed that the power consumed is way higher than warmer days. On a 10hr charge during work, it consumed 30KW. At the end of my shift, BTL was 18 celcius. So I wonder what is the max power comsumption of this heater? Right now it doesn't matter since i'm plugging at work for free but I will surely change my routine for home charging in cold days.