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Types of Heat Resistant Wires for Your Home

As your home appliances and equipment demand for more power to meet your current requirements, it is essential to have heat resistant wires to prevent electrical fires from happening.

If you happen to move into an old house, you must let electricians conduct an electrical inspection to check whether your system is updated. Outdated wiring systems such as aluminium and knob-and-tube are electrical hazards since they are prone to heat as modern appliances demand for more power. 

Old houses that stand for more than 40 years are not only the victims of low heat resistant wires. Electrical overloading, poor power quality, and short circuits also cause the wiring to heat uncontrollably. With about 350 household fires — triggered by electrical faults — occur in NSW each year, you must prevent these hazards to protect your family. 

Thus, you need to know what type of heat resistant wires suitable for your home. Fortunately, Eastern Suburbs Electricians prepared this guide for you to consider. 

Copper Wiring is the Best

If you notice, most electrical wires and cables of appliances, devices, and the electrical system itself are made out of copper. Aside from being affordable, copper wiring is a highly conductive material, ideal for long transmission of electricity. That’s why most energy suppliers maximise its use. Moreover, it is ductile, which means you can bend and transform the material without breaking its properties. 

The best characteristic of copper is its high resistivity against heat. With this, you don’t have to worry about constant heating in your system. It is one of the best heat resistant wires available in the market. 

Insulated Wiring for Added Safety 

As stated earlier, if you want the best heat-resistant wire, opt for copper wiring. You can also choose alloys (copper + silver), but they are for industrial use and more expensive. Meanwhile, aluminium wiring is still acceptable but prepare for its risks as they heat fast and prone to overloading.

Whatever type of wiring connection you have, it is crucial to have an insulated material to contain the heat within the system. Thus, heat-proof insulated wire is a must. The three most common heat-resistant wires are the following:

Teflon Insulated Wire

This type of wire is coated with Teflon, covering the electrical conductors. Depending on its resin quality, it can maintain its uses against tremendously low and high temperatures. Moreover, it can accommodate small and light equipment since its thickness is thinner compared to others. 


  • Abrasion-resistant with friction factor of 0.25
  • Incombustible
  • Water and oil resistant


  • Home appliances, electric equipment, measuring apparatus
  • Robots and electronic devices
  • Computers, laptops, and CCTVs
  • Vehicles (truck, train, cars, aeroplane)

Silicone Rubber Insulated Wire

Silicone rubber is flexible and heat-resistant, making it ideal insulation for wiring. Moreover, it is an eco-friendly material that doesn’t release toxic gases in the atmosphere when burned. 


  • High-voltage insulator
  • Radiation and ozone resistant
  • High elasticity


  • Microwave ovens, rice cookers, and refrigerator heaters
  • Aeroplanes, steel factories, ships, and cars
  • Steam hoses and insulated tubes
  • Medical equipment parts and neon signs

Silicone Rubber Insulated Glass Fibre Braided Wire

This type of wire utilises both the properties of silicone rubber and glass fibre to resist the heating within the system. The first layer covering the conductor is silicone rubber, then weaved with glass fibre, and coated with special insulation silicone varnish.


  • High voltage insulator
  • Environment-friendly
  • High mechanical strength


  • Microwave ovens, rice cookers, and refrigerator heaters
  • Aeroplanes, steel factories, ships, and cars
  • Home appliances, office equipment, automobile electronics
  • Lighting fixtures, motor pumps, boilers

If you need any assistance choosing the right type of heat-resistant wire for your home, don’t hesitate to call for licensed level 2 electricians


With all the electrical hazards present at home, it is vital to have heat-resistant wires to prevent electrical faults from happening. Outdated wiring systems such as aluminium and knob-and-tube are prone to fire. The best way to fire-proof your home is through copper wiring, covered with the right insulation material. 

Here at Sydney Eastern Suburbs Electrician, we guarantee that you and your family would be safe from electrical faults and fire. Our licensed level 2 electricians are experts when it comes to electrical rewiring, choosing the best heat-resistant wires for your needs. With our top-grade electrical services, you will surely enjoy watching your TV and appreciate the beauty of your lighting. After an hour of your call, we will be at your doorsteps with the right tools and equipment.

Do you want a wiring upgrade? We are the right partner for you! Call us at (02) 8378 2827 or avail your free quote by booking an appointment here.  

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