Coleman Cable 60146 HPN Heater Cord, 16/2, 250-Feet. 250-Feet spool of wire. HPN Heater Cord, AWG size: 16/2. Approved for indoor use only.. Intended for use in your home, commercial, or industrial projects. Okay for portable electric heaters, irons, coffee makers and other similar appliances. 250-Feet of cord.. 300-Volt Rated.. 16/2 Gauge Wire.. 16/2 250HPN HEATER CORD . The Coleman Cable brand is a registered trademark of Coleman Cable Inc.