No. Unless that hot water is very, very hot vapor, you’re just adding more mass that’s going to be cooled by the original cold water. And even with vapor, the heat transfer between a hot gas and cool liquid just doesn’t happen fast enough, the vapor will be in the atmosphere before the water heats up very much.
No. Unless that hot water is very, very hot vapor, you’re just adding more mass that’s going to be cooled by the original cold water. And even with vapor, the heat transfer between a hot gas and cool liquid just doesn’t happen fast enough, the vapor will be in the atmosphere before the water heats up very much.
Yeah you’re better off heating up the existing water without adding more volume.