The last thing you should vacuum is ashes, especially if they are still hot or warm. Vacuuming hot ashes can be extremely dangerous as it poses a fire hazard. Hot ashes can contain embers that are still capable of igniting flammable materials inside the vacuum cleaner or even causing a fire in the vacuum itself.
If you need to clean up ashes from a fireplace, wood stove, or any other source, it's essential to wait for them to cool down completely before attempting to vacuum them. Even after they have cooled down, it's often better to use a specialized ash vacuum or a metal container specifically designed for ash disposal to ensure safety. These containers are made to handle the high temperatures associated with ash cleanup and minimize the risk of fire or damage to your regular vacuum cleaner.