"\\(\\textit{BTU per Second Square Foot}\\) is an Imperial unit for 'Power Per Area' expressed as \\(Btu/(s\\cdot ft^2)\\)."^^ . "[Btu_IT].s-1.[ft_i]-2"^^ . . . . . "Btu{IT}/(s\u22C5ft\u00B2)" . . . "[Btu_IT]/(s.[ft_i]2)"^^ . "\\(Btu/(s-ft^{2})\\)"^^ . "N53" . . . "BTU per Second Square Foot"@en . "11356.5267"^^ . .