Block Heaters - What are they for? Do I need one?!

As the temperatures plummet during the chilly winter months here in Northern Canada, many vehicle owners face the challenge of starting their cars in cold conditions. In this blog post, we will explore what an engine block heater is, how it works, and why you might need one.


What is an Engine Block Heater?

An engine block heater is a device installed in a vehicle that warms the engine's components, particularly the engine block and coolant. It is typically connected to an electrical outlet, allowing you to plug it in and heat your engine when your vehicle is parked.


How Does an Engine Block Heater Work?

When you plug in your engine block heater, it starts to heat the coolant and the engine block itself. This gentle warming process helps in several ways:

  • Preventing Cold-Start Damage: Cold starts can be hard on your engine. When the engine is cold, the oil is thicker, and various components experience more wear. The block heater reduces this stress by ensuring the engine starts with warmer oil, which flows more easily.
  • Improved Fuel Efficiency: A pre-warmed engine is more efficient because it operates closer to its optimal temperature. This can lead to improved fuel efficiency, reducing your overall fuel consumption.
  • Easier Start-Up: A warm engine is much easier to start in frigid conditions. This means you won't have to crank your engine as much, which is easier on the battery and starter motor.
  • Reduced Emissions: A warm engine produces fewer emissions during start-up, contributing to a greener and more eco-friendly drive.

Why Do You Need an Engine Block Heater?

  • Cold Climate Survival: Engine block heaters are practically essential in regions with severe winter weather. They ensure your car starts reliably, reducing the risk of being stranded on cold mornings.
  • Extended Engine Life: By reducing the stress of cold starts and improving lubrication, an engine block heater can extend the life of your engine.
  • Fuel Savings: Improved fuel efficiency means you'll spend less on gas, ultimately saving you money.
  • Environmental Benefits: Reducing emissions during start-up contributes to a cleaner environment.


If the temperature outside is below -15 C, then it’s a good idea to use your block heater.

In conclusion, an engine block heater can be a valuable addition to your vehicle, especially if you live in an area with frigid winters. It not only ensures your car starts reliably but also provides long-term benefits such as extended engine life and improved fuel efficiency. So, if you're looking to make your winter driving experience smoother and more eco-friendly, an engine block heater is a wise investment or something to look for when purchasing a vehicle.