Any EV sold new in NZ will use more than half the maximum power a house is wired for, so charging while the oven and heat pump is on will overload your house and potentially blow the main supply fuse (requiring a call out from the power company to fix, and most likely an invoice for the trouble).
It is important that your EV is charged when you need it, and the Wallbox will ensure that this is done, all while monitoring the rest of your house to make sure the charging is done within the electrical supply constraints of your house. The Wallbox app offers a simple way to set up charging so that you can get the energy you need, at the time you need it, at the lowest possible price.
The Wallbox is packed with features that you can use now, as well as features for the future, that can be used when your power provider develops software to manage the electrical grid load with EV charging (offering you significantly cheaper power in order to do so)