Diesel or petrol pumps for the water....

It's gonna get AWFUL hot inside that place if there is a fire. The windows will shatter if they get hot enough or if water hits the hot glass.

It might be fireproof construction, but the interior can burn like Hell in high wind.

I hope he's planning to evacuate when a fire comes again. I would hate to be inside when the oxygen is sucked out and his "air supply" explodes in the heat.