Coiled cords handle less wattage.

About 1800 watts (15 amps) — but only if the cord is fully uncoiled. If it’s coiled up on the spool, cut that in half.

The 14-gauge wire can carry 15 amps safely for short runs. At 50 feet, voltage drop starts to matter, but for most tools and appliances it’s fine. The real danger is heat. When a cord is coiled, the heat from each loop has nowhere to go. It builds up, melts the insulation, and starts a fire. Uncoiled, the heat dissipates normally.

So yes, it changes. If you’re running a space heater at 1500 watts, uncoil the whole thing. If you’re using it coiled, don’t go over about 900 watts (7.5 amps). And honestly, for 50 feet, consider 12-gauge if you’re pushing near 15 amps regularly. Less voltage drop, less fuss.

Coiling is for storage, not operation.