block heaters at sesco

Ensuring Peak Performance in Cold Weather with Engine Block Heaters

When the mercury drops and winter sets in, engines in trucks, ships, factories, generators face challenges starting up in cold temperatures. This is where engine block heaters come to the rescue, ensuring a smooth start and optimal performance for these diesel engines. In this article, we’ll delve into the key aspects of engine block heaters, shedding light on when to use them, how long they take to work, the level of warmth they provide, and the mechanics behind their operation. See our block heaters here.

caterpillar c12 engine 1
caterpillar 3176 engine

How Long Does It Take for a Block Heater to Work:

The time it takes for a block heater to work depends on various factors such as the engine size, the ambient temperature, and the type of heater used. As a general rule of thumb, allowing your engine to warm up for at least two to four hours before starting it in extremely cold conditions is recommended. Investing in a high-quality block heater from our selection ensures efficient and timely warming, minimizing wear and tear on your engine.

In case you are looking for a specific block heater for your car engine, you can ask us here.

How Warm Does a Block Heater Keep an Engine:

The primary purpose of a block heater is to keep the engine warm enough to facilitate easier starts in cold weather. While it may not make the engine scorching hot, it does provide a significant temperature boost to the coolant and the engine block. Typically, our block heaters can raise the engine temperature by 20 to 60 degrees Fahrenheit, creating a more favorable environment for combustion and reducing the strain on your engine’s components.

In case you are looking for a specific block heater for your heavy-duty engine, you can ask us here.


Once installed, our HOTSTART® engine heaters operate by heating the engine coolant, which, in turn, warms the entire engine block. This prevents the coolant from freezing and thickening, ensuring smooth circulation.

The heated engine block also promotes easier combustion of fuel, reducing stress on the battery and starter. Our advanced block heaters are designed for efficiency and durability, providing reliable performance in even the harshest winter conditions.

The block heaters are available in with cord and without cord versions (with -WOC model numbers), depending on how you intend to install them. In case you cannot install them yourself, you can use the help of a good car mechanic in your area.

In case you are looking for a specific block heater for your car engine, you can ask us here.

In conclusion, engine block heaters are invaluable tools for ensuring a reliable start and optimal performance in cold weather, especially for heavy-duty diesel engines. Knowing when to use them, understanding their warming capabilities, and recognizing their functional principles can make a significant difference in the efficiency of your trucking, marine, or industrial operations. Choose our HOTSTART® engine block heaters for a reliable solution that keeps your engine warm and ready to tackle winter’s chill.

For other models, please contact our sales team, we’re ready to recommend you the right engine heater for your machine.

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