A higher temperature heat pump (HTHP) applies the exact same engineering but in a significant temperature. What constitutes ‘higher temperature’ is described loosely across literature and is also regarded as heat supply over a hundred °C by a heat pump In this particular paper. Emerson heat pump technology with Vilter™ https://elliotjmljh.life3dblog.com/19871718/what-does-hydrocarbon-heat-pumps-mean