. "\u00B0F\u22C5hr/Btu" . "[degF].h/[Btu_IT]"^^ . . . "\\(degF-hr/Btu\\)"^^ . . . . "Degree Fahrenheit Hour per BTU"@en . . . "[degF].h.[Btu_IT]-1"^^ . "\\(\\textbf{Degree Fahrenheit Hour per BTU} is an Imperial unit for 'Thermal Resistance' expressed as \\(degF-hr/Btu\\)."^^ . .