If you do not have the correct size socket you can remove the element by putting a cold chisel on one of the edges and striking with a hammer to spin out the element.
How to remove water heater from attic.
Services all things plumbing water heaters.
Add lumbar for structural integrity if needed.
Removing a water heating element.
Use chain hoist chain fall with 3 8 auto grade bolts thru top third of rafter above attic access.
You can use that to put the new one in.
Charlotte water heater advice.
Why you need to get your water heater out of your attic.
So many homes in charlotte are built on slab which can make it more difficult to run plumbing lines through the first floor of your house.