1150 watt, 10A
I ASSUME the block heater in a 2006 Ford Freestar would use ( 600 watts ) like my Ford Explorer 4.0 liter V6 engine does
A typical 120 volt diesel engine block heater can pull around 1000-1500 watts, which would translate to approximately 8-12.5 amps. It's important to check the specifications of the specific block heater you are using to get an accurate measurement.
Check the wattage used by the block heater which should be listed on the heater. If it is 2000 watts or less then the generator will run it.
1300/1500 watts
I was looking at one of the Ford websites and the drawing shows two engine block heaters ( each one is rated at 1000 watts ) They are located on the passenger side of the engine block , in the front and middle expansion plug ( frost plug ) holes on the 7.3 liter diesel in a 1990 Ford F-250 * the drawing also shows that the heating elements are positioned facing UP
It uses 1150 watts, or 10 amps.
A typical block heater for a car engine would be around 400-1500 watts, depending on the size and efficiency of the heater. This kind of heater is used to keep the engine warm in cold weather for easier start-ups.
1000 watts
Find the block heater and look for the nameplate on it. It will be in watts. Use the following equation to find the amperage that it draws. Amps = Watts/Volts. The voltage to use for the truck will be 12 volts.
Ford OEM block heaters are all 600watt (5.3 amp x 115 volt). aftermarket heaters are available up to 1000watt. (1 kilowatt).
To answer this question the wattage of the block heater must be stated. Amps = Watts/Volts.
The answer is simple. The block heater is probably in the 500 - 800 watt range. If it came on new car, your dealer should be able to tell you what wattage it is. KAT'S is known brand and can be purchace at http://www.partsamerica.com/BrandCategories.aspx?MfrCode=FIV stores The 15 amp curcuit you are plugging block heater into has nothing to do with the wattage of the heater. It is only a curcuit breaker that trips if more the 1800 watt is applied to it.