An engine block heater is a mechanical device used to heat an engine and liquid before starting an automobile engine. This heater is ideal for use below freezing because it reduces the risk of “cold start” and idling damage.
When you turn on the car engine, the car block heater quickly heats the liquid to the ideal operating temperature.
In most cases, the block heater warms up the engine for up to 5 minutes, but in some cases, it can take 10 minutes to warm up the engine.
Engine temperature plays a major role in the proper functioning of an engine. When temperatures drop below freezing, engine starting problems can occur. Therefore, engine block heaters are used to warm the engine. These heaters extend the life of the engine and help keep it running all the time.
In cold weather, warming the vehicle’s liquid is essential for efficient engine operation. In cold environments, engine oils turn into thicker oils, as engine components can rub against each other, but idling is not recommended.
Warming the engine oil before starting the vehicle will reduce emissions and improve fuel economy. Refrigerants help maintain the room temperature of the vehicle’s engine and can also be heated with a heater.
However, the refrigerant affects the heat inside the car, so using a heater will reduce the time it takes to heat the car. Engine heaters have the ability to reduce the risk of engine damage and extend the life of the car.
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Working Principle of Engine Block Heater
The engine block heater works as follows:
- Turning on the block heater heats the vehicle’s coolant.
- When the coolant is heated, the water pump pumps the coolant into the engine. Coolant flows through the engine.
- The hot coolant transfers that heat to the engine and raises the temperature of the engine normally. Once the engine has warmed up, it’s easy to start.
Types of Engine Block Heaters
- Frost Plug Heater
- Engine Warming Blanket
- Oil Pan Heater
- Dipstick Heater
- In-line Heater (Circulation Heater)
- In-line Heater (non-circulating)
- Bolt-on External Heater
Purpose of Engine Block Heating
The engine fluid is preheated for efficient engine operation. Preheating has the following advantages:
- The compartment heater generates heat faster and is more comfortable.
- The process of preheating the engine fluid helps to bring the fluid back to normal temperature and makes it easier to start the vehicle.
- Engine block heaters help reduce emissions and fuel consumption.