I think he said sharing a circuit with a fridge, which are generally 110 in the US -- i think this is how my apartment is wired (2-phase 30A to oven dedicated, one 20A for the whole rest of kitchen)
Trying to run a resistive heater on the same circuit as a fridge compressor without tripping leans towards very conservative wattage
Trying to run a resistive heater on the same circuit as a fridge compressor without tripping leans towards very conservative wattage