The beauty of the Ninja and Enforcer is that
you only ever need to run one power cord.
When I set up it's machine off fill up and leave
with heater on.
Pre spray, agitate and set up and by that time
the water is at full temperature.
Switch off heater and get to work and every time
I stop it's machine off and heater on, to be honest
though it loses so little heat over the course of say
30 minutes it's negligible.
Then again it's got a solution tank lid...