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Coming from the stock cord, you get both a voltage and amperage increase. All in all, it takes total heating (and charging) power from 900 watts to 3,000 watts. The heater is rated at 5,000 watts.So, yes, you'll get much more heat by using a 240 volt EVSE rated at 16 amps or better. Plus, instead of a slight drain on the battery using the stock cord, pre-heating at 240 volts either won't use any battery or can still provide a trickle charge once the coolant is heated up.What also helps, I find, is using the Defrost option instead of HEAT on the remote. This will also activate the rear defroster and heated mirrors (2012 ES with Cold weather/quick charge packages, 2012 SE with Premium Package, and all 2014's). Be sure to also have your heated seat turned on, as this will warm as well.
Coming from the stock cord, you get both a voltage and amperage increase. All in all, it takes total heating (and charging) power from 900 watts to 3,000 watts. The heater is rated at 5,000 watts.
So, yes, you'll get much more heat by using a 240 volt EVSE rated at 16 amps or better. Plus, instead of a slight drain on the battery using the stock cord, pre-heating at 240 volts either won't use any battery or can still provide a trickle charge once the coolant is heated up.
What also helps, I find, is using the Defrost option instead of HEAT on the remote. This will also activate the rear defroster and heated mirrors (2012 ES with Cold weather/quick charge packages, 2012 SE with Premium Package, and all 2014's). Be sure to also have your heated seat turned on, as this will warm as well.
