The cold snap has finished and the heater actually worked right threw it.
The kill-a-watt meter now reads 763 on hours with 431 Kwh consumed
It consumed 50 kwh over a 50% run time using its 1000w power draw.
Is sitting at a 66% run time with a average power draw of 640 watts
Those numbers will climb as winter continues the percentage will rise
until ( I estimate ) bottoming out at about at 80 or 85% run time due to its lower power draw moments it has when it frost up and enters defrost mode.
After finding the house too cool in the morning added in a ceramic heater set on 500w draw mode , that draws 600 watts set on a hour on hour off cycle for 12 hour on every 24hrs
It worked out perfect for keeping the house at 20c
A few charts I downloaded the data from B.C Hydro our electricity supplier website
Im the light blue bars the dark blue are neighbors , you can see the increase in power draw at the end of the chart