I plugged in when it got below 40--- had it on a timer for a couple hours before startup. Power was cheap where I was.
word of caution though... . make sure the end of the plug is covered..... road salt will give u a nasty surprise, even if it isnt obvious.
I plugged in after getting home one morning and electrocuted myself and burned the end of the plug right out. LOL couldnt see for about 5 minutes. Was just like a arc welder. 
no damage to the cord or the heater... just swapped out the plug and BOMB'd it a little.
hehe
Just my observations... . I miss the truck. wish the dam economy would straighten around, cant do much unemployed.

word of caution though... . make sure the end of the plug is covered..... road salt will give u a nasty surprise, even if it isnt obvious.



no damage to the cord or the heater... just swapped out the plug and BOMB'd it a little.

Just my observations... . I miss the truck. wish the dam economy would straighten around, cant do much unemployed.