[Bad Moon]

Something worth noting, the generator space is open to the outside (slots in the floor, and open gaps between the gen space and the propane compartments). The generator compartment also has openings into the space under the basement floor. These gaps allow outside air to infiltrate the conditioned air space, lowering the efficiency of your HVAC system. Fill these gaps with foam weatherstrip, foil tape, and/or spray foam. Insulation board over the steel floor would help too.