Heating a greenhouse

by Bob
(Ca)

I want to heat a 12x8 greenhouse with a heater that is used for additional heat in bathroom.
I live in the high desert area of Ca.The winters typically drop into the 20's at night.
Question:What is the appropriate solar system for this?
I purchased a 60 watt solar panel system,a 1500-3000 watt inverter,and a 12 volt marine battery.
Is this going to work for the heater?
Any ideas?
Thanks,Bob