I do the same thing. Not knowing any better I was misting with cool water til I noticed how fast and quick the temp dropped. It would take a solid couple hours to get back up to acceptable levels. If I fill the bottle with hot water and spray it all over my hand it barely feels like bath water even if I pump it out as fast as I can spray it. I do make sure I don't spray her directly too just to err on the side of caution. It still drops pretty good but not nearly as far. Some variables there too. Some folks like their water heaters on the burn unit setting.