Gas valve on the bottom , looks like one of the mini green gas containers , you decant from big cans into it , does the top unscrew or flip open revealing a nozzle ?
Never understood the cancelling due to low numbers , fair enough if it’s only two or three booked on but ultimately money is money and most sites still have to pay a ground rent so even running at a partial loss is better than a complete loss .
In my experience cancelling due to low numbers is...