Propane fridge -- how many watts per day on propane?

When the gas valve is not on the control board draws about 200 to 300 mA. The gas valve solenoid draws about an amp. It you figure the duty cycle at 50% that's 12 Ah. Add the control board current brings the total to less than 20 Ah per day. If the duty cycle is higher, meaning burning more propane, the amp draw will go up proportionally.