If you are planning to use an 1800W unit, then stockpot quality absolutely makes a difference. With that said, a low pressure propane-fired stove will handle the job much better. My propane stove is a Camp Chef Pro 30, which is a low pressure 30K BTU stove. The stove is small enough to sip propane, but large enough to bring 7-gallons of wort to a boil when I brew the occasional 5.5-gallon all-grain batch.