To demonstrate that water removal could be achieved by heating, COF-SO3H was first subjected to controlled conditions (~50% RH and 20 °C) for 24 h for water loading and then transferred to a thermogravimetric analyser, where the heat-induced water desorption was monitored for 1 h at temperatures of 30, 45, 60, 75, and 90 °C (Figure ). Higher temperatures induced a faster rate of water release and resulted in a more complete removal of the adsorbed water. Water removal rates increased significantly at temperatures above 45 °C, leading to the release of >80% of the absorbed water within 10 min at 60 °C, and >95% over the same time at 90 °C. In conjunction with the rapid uptake rates observed for COF-SO3H, these findings underline the possibility of performing multiple adsorption-desorption cycles in a single day, substantially enhancing daily water production.