## What is a Car Engine Block Heater?
An engine block heater is a device that uses an electrical plug to provide additional heat to an internal combustion engine. When the heater is plugged in, the engine block is warmed up, which makes it easier to start the car in cold weather.
Engine block heaters are typically installed in the engine block, near the coolant passages. The heater consists of a heating element and a thermostat. The heating element warms the coolant, which is then circulated through the engine block. The thermostat ensures that the coolant is not overheated, and it will turn off the heater when the engine reaches a certain temperature.
## Benefits of Using an Engine Block Heater
There are several benefits to using an engine block heater, including:
* **Easier starting in cold weather:** When you plug in an engine block heater, it will warm up the engine block. This will make it easier to start the car, even in cold weather.
* **Reduced engine wear:** When you start a cold engine, the metal parts are not as well lubricated. This can lead to increased engine wear. Using an engine block heater will warm up the oil, which will help to reduce engine wear.
* **Improved fuel efficiency:** A warm engine will run more efficiently than a cold engine. This is because the fuel will be more completely combusted, which will result in improved fuel efficiency.
* **Reduced emissions:** A warm engine will produce fewer emissions than a cold engine. This is because the emissions control systems work more efficiently when the engine is warm.
## How to Choose an Engine Block Heater
There are a few things to consider when choosing an engine block heater, including:
* **The size of your engine:** The size of your engine will determine the wattage of the engine block heater that you need.
* **The climate you live in:** If you live in a cold climate, you will need a higher wattage engine block heater than if you live in a warm climate.
* **The type of car you have:** Some cars are more difficult to install an engine block heater in than others. It is important to consult with your mechanic to determine if your car is compatible with an engine block heater.
## How to Install an Engine Block Heater
Installing an engine block heater is a relatively simple process. However, it is important to follow the instructions carefully.
To install an engine block heater, you will need the following tools:
* A socket wrench
* A torque wrench
* A coolant drain pan
* A funnel
* A new coolant filter (optional)
1. **Disconnect the negative battery terminal.** This will prevent any electrical accidents from occurring.
2. **Drain the coolant.** Place the coolant drain pan under the radiator and open the drain plug. Allow the coolant to drain completely.
3. **Locate the freeze plug.** The freeze plug is a small, round metal plug that is located in the engine block. It is typically located near the coolant passages.
4. **Remove the freeze plug.** Use the socket wrench to remove the freeze plug. Be careful not to drop the freeze plug into the engine.
5. **Install the engine block heater.** Insert the engine block heater into the hole where the freeze plug was located. Tighten the engine block heater using the torque wrench.
6. **Reinstall the freeze plug.** Insert the freeze plug into the hole in the engine block. Tighten the freeze plug using the socket wrench.
7. **Refill the coolant.** Use the funnel to refill the coolant. Add coolant until the reservoir is full.
8. **Reconnect the negative battery terminal.**
## Safety Tips
When using an engine block heater, it is important to follow these safety tips:
* **Never leave the engine block heater plugged in for more than 24 hours.** This can overheat the engine and cause damage.
* **Unplug the engine block heater before starting the car.** This will prevent the heater from overloading the electrical system.
* **Inspect the engine block heater cord regularly for any damage.** If the cord is damaged, replace it immediately.
## Conclusion
An engine block heater is a valuable tool that can make it easier to start your car in cold weather. By following the tips in this article, you can choose and install an engine block heater that is right for your car.
