Just wondering what size of breaker and what size of wire to run for 2 vehicles with 1 car warmer and block heater in each. Would a 15 amp breaker be heavy enough for both?

What is the wattage of the units in the vehicles? :confused:

What is the wattage of the units in the vehicles? :confused:

Not sure the wattage with the blockheaters, I think they are 450 per heater and 875 for car warmer.

IF those numbers are accurate you are just barely making one 15A circuit for EACH vehicle.
Any more wattage and you will be at a 20A circuit each.

Without knowing the actual wattage we are just guessing. :confused: