Newbie here- I was wondering if a power cord can safely be replaced with a comparable extension cord; meaning, if I got a heavy duty extension cord, with matching gauge & amperage, is it safe to use that as a replacement? I've seen a mix of opinions online but most who say "no" seem to reference gauge & amps. But if the extension cord meets those minimums, shouldn't it be fine? And if I use an extension cord longer than the original power cord, does that matter? Thanks in advance.