How Much Amperage Does A Block Heater Draw?
The amperage of a block heater depends on the size and type of the heater. A typical block heater for a car or small truck may draw between 5 and 10 amps, although some larger models may draw up to 15 amps. It’s important to check the specifications of the block heater you are using to determine the exact amount of current it draws.
Diesel block heater amp draw– 6 amps
Semi block heater amp draw– 6.5 amps
Cummins block heater amp draw– 12.5 amps
Engine block heater amp draw– 20 amps
Ford block heater amp draw– 10 amps
Duramax block heater amp draw– 5 amps
7.3 block heater amp draw– 9 amps
It’s also important to note that the amperage of a block heater can be affected by the voltage of the electrical system it is connected to. For example, a block heater that is rated for 10 amps at 120 volts may draw less current if it is connected to a 240-volt electrical system.
How many watts does the block heater draw?
For example, if a block heater draws 10 amps at 120 volts, the wattage of the heater would be 1200 watts (10 amps x 120 volts = 1200 watts). If the same block heater is connected to a 240-volt electrical system, it will draw 2400 watts (10 amps x 240 volts = 2400 watts).
Do block heaters have a thermostat?
Some block heaters do have a built-in thermostat that allows you to set a specific temperature at which the heater will turn on and off. This can be useful if you want to maintain a specific engine temperature or if you want to conserve energy by only using the heater when necessary.
However, not all block heaters have a thermostat. Some models are designed to run continuously, while others may have a simple on/off switch. It’s important to check the specifications of the block heater you are using to determine whether it has a thermostat and how it is controlled.
What temp to plug in the diesel block heater?
The temperature at which you should plug in a diesel block heater will depend on the specific conditions and your personal preferences. Some people choose to plug in their block heater when the temperature falls below a certain threshold, such as 0°F (-18°C), while others may choose to plug it in at a higher temperature.
Block heater disadvantages
There are a few potential disadvantages to using a block heater:
Cost: Block heaters can be expensive to purchase and install, especially if you need to hire a mechanic to do the work for you.
Energy usage: Block heaters use electricity to heat the engine block, which can increase your energy consumption and potentially increase your energy bills.
Safety concerns: If a block heater is not installed or used correctly, it can pose a fire hazard. It’s important to follow the manufacturer’s instructions for installation and use and to inspect the heater for damage or wear regularly.
Limited effectiveness: In extremely cold temperatures, a block heater may not be able to fully heat the engine block, which can result in poor starting performance and increased wear on the engine.