can anyone tell me the wattage of the block heater of a '05 columbia, I want to plug it every night, but electricity can get expensive, so I want to run it with a timer for 2-3 hrs a night, I read there's a formula to follow like the below for the right timer amps wise...can I buy this locally like at Lowe's? thanks
IF IT'S EXAMPLE
1500w divided by 120 (volts) is 12.5 amps
120/1500=12.5