Product Information

Benefits of Preheating

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Protects the Engine
The moving parts in an engine, like bearings, crankshaft, connecting rods, camshaft, etc., wear out the most when they are cold. This wear is significantly reduced at higher temperatures. Therefore preheating your engine protects the engine from wear.

Increased Sustainability
As stated above, preheating your engine minimizes engine wear, which extends the service life of the engine. Preheating also has a positive effect on the life of liquids and batteries. Liquids age quicker at extreme temperatures or extreme temperature differences. Preheating results in a more stable temperature, which makes the liquids last longer. The charging capacity of a battery is also affected by extreme temperatures. When the battery is kept at a constant temperature the charging capacity remains intact longer.

Better for the Environment
Next to increased sustainability, preheating results in more environmental benefits. Most fuel is consumed when starting the engine and bringing the engine to operating temperature, and a cold engine emits more harmful substances compared to a warm engine. A preheated engine consumes less fuel and releases less emissions, making preheating beneficial for the environment.

Cost & Time Savings
A preheated engine is less sensitive to wear and therefore requires less maintenance, which results in lower maintenance costs. In addition, a warm engine consumes less fuel, which reduces your fuel costs. By preheating your engine you eliminate the engine warm-up time. You can immediately use the full engine power, without the risk of wear. This is essential for e.g. emergency power supplies, sprinkler systems, ambulances, rescue services, etc.

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About us

GenHeat was established to address the increasing demand for specialised expertise and products in engine heating.

We provide heating solutions for diesel, fuel, coolant, engine oils, hydraulic oils, other industrial liquids, batteries, cabins, and more. Our systems enhance engine starting, reduce wear, lower fuel consumption, extend battery life, and minimise environmental impact.

An engine preheater warms the engine and maintains a stable starting temperature while it’s not in use. An engine heater can heat the engine's coolant and circulate it through the engine. This transfer of heat can occur in two ways: through a built-in circulation pump that moves the heated coolant, or via a thermosiphon or immersion heater that relies on natural convection to circulate the coolant.

Types of Preheaters Include:

Coolant Heaters
Coolant heaters warm the engine by heating the coolant and transferring that heat to the engine. Some use an electric circulation pump, known as forced flow or circulation heaters, to evenly distribute heat by pumping the coolant through the engine. Other coolant preheaters utilise the thermosiphon process, which relies on thermal convection to circulate the heated coolant through the engine.

Fuel & Oil Heaters
At low temperatures, paraffin wax in diesel fuel can begin to gel, leading to solidification and obstructed flow. This prevents the fuel from reaching the engine, causing significant issues. Oils can also experience increased viscosity in cold weather, reducing their flow to engines and hydraulic systems. These problems can be avoided with fuel and oil heaters, and at GENHEAT, we provide a range of heaters from various brands.

Circulation & Tank Heaters
In addition to enhancing sustainability, preheating offers significant environmental benefits. A substantial amount of fuel is used during engine start-up and reaching operating temperature, and a cold engine produces more harmful emissions than a warm one. Preheating reduces fuel consumption and lowers emissions, making it environmentally advantageous.

In addition to coolant heaters, we offer forced circulation heaters, thermosiphon heaters, and direct immersion heaters for warming (bio) fuels and (engine) oils.

Interested in discussing your preheater needs? Share your details with us, and we’ll get back to you.