Amperage Draw from Block Heater
 

anyone have a idea of the wattage/amperage from the cummins block heaters? our electric bill went nuts this month and was $375 instead of $230-$260 and the only thing that has changed was plugging my truck in at night, hell at that rate I could just let it idle and warm up every morning cause at a gallon a morning (being generous) thats $2 a day vs $4.50 a night for plugging it in:humm::humm:

Im not sure exactly how much but i do know they pull some pretty good amps

I can picture it drawin that kinda juice if it's plugged in all night on some good cold nights. Lot a guys hook em up to the little timers you can get for under $20 dollars so they only come on a few hours before start up.

I think they are about 1000 watts soooooo to get amperage 1000/120= 8.3 amps. So yea thats just alil bit :lol88: Just get a outdoor timer rated for 10 or 15 amps and set it for 2 hours before you leave in the morn. And if you somehow forget to go to work that day it can also be set-up to shut off

I think its an option to go to the 1KW heater.. Most stock units are 750W. Still running that for 10-12 hours overnight would be spendy. I had a timer for mine to save on the cash, but now the Espar takes care of that. It only burns 0.5 Litres/hour on high (0.125 Gal/hour) and is warm (70 C) in about an hour.

I don't think they pull full power all the time they have Tstats in them or most of the heaters that I'm aware of do. I would still put in on a timer 3-4 hrs at most.

Correct DozerBoy they cycle on and off....

The Chevy ones turn on and off - but the block heater in a Cummins draws the same whenever its plugged in.

It only costs me about $1 a night to plug mine in all night.

ours is a 750watt heater.