Commercial units: 90–120 °C routinely, 140–165 °C leading edge; steam-generating heat pumps are entering the market.
From our guide: Industrial heat pumps — full context, charts and sources there.
Boilers, kilns, heat exchangers, valves and steam lines lose energy continuously. Inzonex makes patented (UK GB2508992.1) removable modular insulation — snap-fastened covers engineered per temperature tier, not generic off-the-shelf jackets: