. "apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building"@en-us . "heat pump"^^ . . "103509608"^^ . "0"^^ . "heat pump"@en-us . "103381211"@en-us . . . . . . "0"^^ . . "03509608-n"^^ . "102812479"@en-us . . .