What I love about these dumb isekai featuring modern products, is that the authors always make the solutions needlessly elaborate.
I especially like this one because they literally have pumped fuel and unlimited hose to just fill it up from the other side zoolander style. Worried about static but then bring a whole bunch of heaters and fans in… Also they have power apparently so idk why they needed a camp stove timer on 11 hours to light it (kinda glazed over that bit really). Run an extension with the ends stripped and just plug it in to get spark lol.
Honestly while they were at it they may as well chucked in some plastics, sugar, detergents and just turned the whole room into ‘nam.