Gas Fireplace Fan

During a power outage I can get some heat from my gas fireplace although the fan does not work then. It would provide a lot more heat if I could get the Ecoflow to power the fan. Attached is a photo of the fan junction box with power coming from the fan control and the power cord from the fan. Could it be wired so that there was a plug from the fan that I could plug into the Ecoflow? Something I could do myself?

Thanks!