Mini Control PID Pellet does not start after power failure

Hello, I have a pellet cooker, with the Mini-ster PID Pellet controller.
I have a question for my colleagues, is it possible to reprogram this controller so that it starts up after a power outage?
I live in a place where there are frequent power outages and every 3 or even every 2 nights I am in a cold house, because a power outage of even 10 seconds causes that the cooker no longer starts up by itself and I have to go and do it manually.
This is a hopeless idea and very inconvenient for me.
Please advise.

And isn't it simpler to put in a UPS to power this controller? Even the whole cooker, including feeder etc. doesn't draw much power.

I was considering installing a UPS, but the heater draws 360 watts, the price of one with a battery is £800, I thought maybe something could be done with this controller.
I guess you have to buy this UPS after all.