Thanks to everyone for your replies. It's a lot to take in, as i am a newbie to all this, but i really do appreciate those taking the time to help and educate me. I've decided against running my PS4 while CC'ing, as i realise my current power supply will not be enough.
@TheBiscuits I will try that experiment on Monday and get back to you on the results. Thank you for your ongoing advice
@Tony Brooks & @booke23 I'm using an Outwell Ecocool Lite 24L. It has an eco setting, but it doesnt say anywhere on the product the power rating in eco mode, although i assume less than 45W. All i know is my engine is a Honda 15, but there are several different models with 15hp. Specs online say '12A electric/6A recoil', so im going to run with that for now.
@PD1964 For heating, i'm using a Warmlite WL42005 halogen heater and a wife.
@mrsmelly I am indeed an adult with his own hobbies and interests. One of them being gaming.