Characters
Okay, technical problems from last night have been resolved. Hair dryer plus toaster plus waffle iron equals boiling water.
— Louise · Bob's Burgers

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker reports in a matter-of-fact way that last night's technical trouble is solved, then states the result as an equation: a hair dryer, a toaster and a waffle iron together produce boiling water. The deadpan arithmetic makes an odd appliance experiment sound like routine troubleshooting.
Context reviewed