Subaru Block Heater Wattage
The Subaru engine block heater is a 400 watt, 115-volt heater that plugs into a standard household electrical outlet and warms the engine coolant of your car to enable easier starting in extremely cold conditions.
This information is consistent across multiple sources, including the official Subaru parts website and discussions on Subaru forums [[9]].
Contents
- How many watts does my block heater use?
- How many watts is the Subaru engine block heater?
- Is it safe to leave a block heater plugged in overnight?
- Can you leave an engine block heater plugged in all night?
- Do newer vehicles need block heaters?
- How many amps does a car block heater draw?
- Do Subarus need block heaters?
- How many watts is the block heater on a Subaru crosstrek?
- How hot does a 400W block heater get?
- How much power does an engine block heater need?
How many watts does my block heater use?
You know, block heaters can range anywhere from 750 to 1500 Watts. And if you think of it from a residential standpoint, it would be like having 15 100 watt light bulbs turned on and left on in your house for 20 hours a day.
How many watts is the Subaru engine block heater?
400 watt
400 watt, 115 volt heater warms engine coolant to promote easier starting in extreme cold conditions. Plugs into household electrical outlet.
Is it safe to leave a block heater plugged in overnight?
Yes, you may leave a heater plugged in unattended. Be sure to clear flammable materials from the area around the heater. You should turn it off when you don’t need heating, unless you need the place kept warm while you’re gone.
Can you leave an engine block heater plugged in all night?
You don’t want to waste money, but at the same time, you want to make sure your vehicle starts in the morning. One thing that most can agree on is that the maximum amount of time you should leave the engine block heater plugged in for is four hours. Any more and you’re just wasting electricity.
Do newer vehicles need block heaters?
If you’re running a properly maintained modern car with synthetic oil, quality fuel and a healthy battery that’s been tested in the fall before the cold weather sets in, chances are even less likely that you’ll need a block heater.
How many amps does a car block heater draw?
How many amps does a block heater draw. By the way, plugging in your block heater will draw about 6 or 7 amps of current. You should continuously inspect all electrical cable insulation, prongs and connectors for signs of damage, wear, or charring for maximum safety.
Do Subarus need block heaters?
Without an engine block heater, you put your car at risk of serious damage, as critical components would likely rub against each other without the protective barrier of lubrication.
How many watts is the block heater on a Subaru crosstrek?
400-watt, 115-volt heater.
How hot does a 400W block heater get?
I have a 400 watt block heater in my 2.4L 4 cylinder engine and it heats the coolant to about 50 degrees F over outside temperature. So on a 20 degree F day, I can expect the coolant to be somewhere around 70 degrees F on startup.
How much power does an engine block heater need?
Let’s start with a comparison of the various engine block heaters.
| Name of Heater | Rated Voltage | Rated Power |
|---|---|---|
| Engine Coolant Heater | 110V/230V | 1000W-2500W |
| Block Heaters | 110V/230V | 500W-1500W |
| Diesel Engine Heater | 12V/24V DC | 5000W-12000W |
| bolt on external heater | 110V | 400W |
