Since you will have a neutral at the switchbox, the simplest is just to buy one of the Z wave switches that require a neutral.
edited to remove a link to a switch which, as @anon36505037 pointed out below, is rated only to work with incandesce and so doesn’t fit this use case. My apologies for the misdirection.
The following is a simple zwave switch which is on/off only And can handle over 1000 W.