And that adds $200 to the bill for swapping out an appliance. Simplest solution is to not hardware any of this, put in a single hole outlet, and require manufacturers to put plugs on their appliances going forward. Same goes for dishwashers, etc.Plumbers are the worst electricians and carpenters are the worst plumbers.
I think some basic electrical training should be required for the plumbing license. I think it would be unreasonable to bring an electrician out to make the final connection to a water heater like this or a sink disposal, it should be will within the scope on a like for like swap.