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Ensuring your furnace operates safely and efficiently is paramount, especially during colder months. A faulty or incompatible replacement cord can lead to performance issues or even safety hazards. This guide will help you navigate the options to select the most suitable cord for your furnace.
VERSATILE CONNECTION: 6-Feet, 3-wire, 16/3 replacement power cord NEMA 5-15P male to bare end ( ONE END ), which has open wiring on the other end for easy connection and custom installations.
HEAVY DUTY DESIGN: cable type is SJT, 300V, VW-1, 105°C, 16AWG. Amperage: 12 amp. Wattage: 1500 watts, perfect for general appliances and industrial equipment.
PREMIUM CONSTRUCTION: 3-conductor wire with durable black insulation, built to handle continuous use and resist wear and tear. And Fine-stranded copper wire inside. Please note the thickness of the cord is 0.34" in diameter.
SPECIFICATIONS: UL Approved. Professional, safe, heavy duty and reliable. 6-foot length power cord with 16-gauge thickness provides optimal power transfer while maintaining flexibility.
Replacement Power Cord: 14-AWG, 3-Wires, SJTW, 15 Amp, 125V, 1875 Watts max applications
Pigtail End: 14/3 replacement power cord NEMA 5-15P male to bare end ( ONE END ), which has open wiring on the other end
Safe Cable: ETL Listed, Insulation stripped for easy connection and installation, 3 prong grounded plug for added safety, Professional, safe, heavy duty and reliable
Indoor / Outdoor Power Cord: Temperature Range: -40°F to +140°F, Weather-resistant flexible PVC jacket protects power cords from rain, sunlight and abrasion
Replacement Power Cord - 14-AWG, 3-Wires, SJTW, 15 Amp, 125V, 1875 Watts max applications.
Pigtail End - 14/3 replacement power cord NEMA 5-15P male to bare end ( ONE END ), which has open wiring on the other end.
Safe Cable - ETL Listed, Insulation stripped for easy connection and installation.3 prong grounded plug for added safety. Professional, safe, heavy duty and reliable.
Indoor / Outdoor Power Cord - Temperature Range: -40°F to +140°F, flexible vinyl jacket protects cords against moisture, abrasion and direct sunlight.
HEAVY-DUTY REPLACEMENT POWER CORD – 9 ft SJTW power cord ideal for replacing worn or damaged cords on major appliances, motors, and power tools to restore safe and reliable operation.
14/3 AWG CONSTRUCTION – Durable 3-wire (14 gauge) cable supports higher load capacity and consistent power delivery for demanding residential and commercial electrical applications.
15 AMP / 125 VOLT RATING – Rated for up to 1875 watts, compatible with standard NEMA 5-15 outlets, making it suitable for a wide range of household and jobsite equipment.
WEATHER-RESISTANT SJTW JACKET – Thermoplastic vinyl insulation provides flexibility and protection against moisture, abrasion, and outdoor conditions for long-lasting performance.
HEAVY-DUTY REPLACEMENT POWER CORD - 6-ft replacement appliance cord designed to replace worn or damaged power cords on tools, motors, and household appliances for safe and reliable operation.
14/3 AWG HIGH-POWER PERFORMANCE - Heavy-duty 14-gauge, 3-conductor cable supports up to 15 amps, 125 volts, and 1875 watts, providing dependable power delivery for demanding electrical equipment.
GROUNDED NEMA 5-15 PLUG DESIGN - Equipped with a standard 3-prong grounded NEMA 5-15 plug and pigtail end for secure electrical connections when replacing cords on appliances or power tools.
WEATHER-RESISTANT SJTW JACKET - Durable thermoplastic SJTW insulation protects the cord from moisture, sunlight, and everyday wear, making it suitable for indoor and outdoor applications.
Premium Grade Replacement Power Cord: 14 AWG Heavy-Duty Wire | SJTW Jacket/105℃| 15 Amp / 125V / 1875W Max Load | Engineered for High-Power Appliances & Tools
User-Friendly Pigtail Design: NEMA 5-15P Male Plug to Pigtail (One-End Configuration) | Pre-Stripped Insulation for Quick, Hassle-Free Wiring & Installation
UL Listed Safe & Reliable Cable: 3-Prong Grounded Plug for Enhanced Leakage Protection | UL Certified to Meet Strict Safety Standards | Professional-Grade Construction for Long-Lasting Durability
All-Weather Indoor & Outdoor Cord: Weather-Resistant Flexible PVC Jacket | Shields Against Rain, UV Rays, Abrasion & Wear | Ideal for Both Indoor Use & Outdoor Jobsites
Premium Grade Replacement Power Cord: 14 AWG Heavy-Duty Wire | SJTW Jacket/105℃| 15 Amp / 125V / 1875W Max Load | Engineered for High-Power Appliances & Tools
User-Friendly Pigtail Design: NEMA 5-15P Male Plug to Open Bare End (One-End Configuration) | Pre-Stripped Insulation for Quick, Hassle-Free Wiring & Installation
UL Listed Safe & Reliable Cable: 3-Prong Grounded Plug for Enhanced Leakage Protection | UL Certified to Meet Strict Safety Standards | Professional-Grade Construction for Long-Lasting Durability
All-Weather Indoor & Outdoor Cord: Weather-Resistant Flexible PVC Jacket | Shields Against Rain, UV Rays, Abrasion & Wear | Ideal for Both Indoor Use & Outdoor Jobsites
VERSATILE CONNECTION: 6-Feet, 3-wire, 12/3 replacement power cord NEMA 5-15P male to bare end ( ONE END ), which has open wiring on the other end for easy connection and custom installations.
HEAVY DUTY DESIGN: cable type is SJT, 300V, VW-1, 105°C, 12AWG. 12 gauge wire is rated for 20 amp drop. NEMA 5-15 plug is rated for 15 amp, perfect for high-power appliances and industrial equipment.
PREMIUM CONSTRUCTION: 3-conductor wire with durable black insulation, built to handle continuous use and resist wear and tear. And Fine-stranded copper wire inside. Please note the thickness of the cord is 0.46" in diameter.
SPECIFICATIONS: UL Approved. Professional, safe, heavy duty and reliable. 6-foot length power cord with 12-gauge thickness provides optimal power transfer while maintaining flexibility.
HEAVY DUTY PERFORMANCE - Professional-grade 3-wire replacement power cord designed for use with MAJOR APPLIANCES, MOTORS, and POWER TOOLS. This SJTW hard service cord features a durable thermoplastic/vinyl jacket for long-lasting reliability.
OPTIMIZED SPECIFICATIONS - Rated For: 13 Amp, 125V, 1625 Watts max applications. Built with a high-quality 16 AWG (16/3) conductor to ensure consistent power delivery for demanding electrical needs in home or workshop environments.
WEATHER RESISTANT DESIGN - Features an SJTW hard service jacket that is weather resistant for outdoor use. The durable vinyl construction protects against moisture, abrasion, and sunlight, making it ideal for various environments.
SECURE GROUNDED CONNECTION - Equipped with a molded Ground NEMA 5-15 plug for maximum safety and stability. The 3-prong design ensures proper grounding for sensitive electronics, high-draw power tools, and household appliances.
Replacement Power Cord: 14-AWG, 3-Wires, SJTW, 15 Amp, 125V, 1875 Watts max applications
Pigtail End: 14/3 replacement power cord NEMA 5-15P male to bare end ( ONE END ), which has open wiring on the other end
Safe Cable: ETL Listed, Insulation stripped for easy connection and installation.3 prong grounded plug for added safety. Professional, safe, heavy duty and reliable
Indoor / Outdoor Power Cord: Temperature Range: -40°F to +140°F. Weather-resistant flexible PVC jacket protects power cords from rain, sunlight and abrasion
Last update on 2026-10-17 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Furnace Replacement Cords
Installation Considerations
While replacing a furnace cord is often a straightforward DIY task for those comfortable with basic electrical work, safety is crucial. Always disconnect power to the furnace at the breaker box before attempting any replacement. If you are unsure about the process, consult a qualified HVAC technician or electrician. Ensure the new cord is securely connected to both the furnace and the power source.
Frequently Asked Questions
What is the difference between cord gauge and amperage rating?
The cord gauge refers to the thickness of the wire inside the cord. A lower gauge number indicates a thicker wire. The amperage rating is the maximum electrical current the cord can safely handle, and it's directly related to the wire's thickness.
Can I use a longer cord than my original furnace cord?
Yes, you can often use a longer cord, as long as it has the appropriate amperage rating and gauge. However, avoid excessively long cords, as they can increase resistance and potentially become a tripping hazard.
How do I know which amperage rating I need for my furnace?
The required amperage rating is typically listed in your furnace's owner's manual or on a label attached to the unit itself. You can also check the specifications of the existing cord if it's still functional.
Are all furnace cords suitable for outdoor use?
No, not all furnace cords are designed for outdoor use. If your furnace is installed in a location exposed to the elements, ensure the replacement cord is rated for outdoor use and is resistant to moisture and UV exposure.
What does a UL or ETL certification mean for a furnace cord?
UL (Underwriters Laboratories) and ETL (Intertek) certifications indicate that the cord has been independently tested and meets specific safety and performance standards. Choosing a certified cord provides assurance of its quality and safety.
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