Hello
you will need to know the Amps that your system will consume and need to operate correctly and you have to follow local electrical code .
Based on the amps that you system needs you will pick the correct wire size. Refer to Electrical codes for wire size and grounding.
Romex is one kind of cable it comes with diffferent amount of conductors and size of conductors. it is usually embedded in the walls. So if your electrician is pulling a new line he needs to use the right kind of line from panel to the location you need. If inside walls romex is fine if it is external that conduit.
Best
Technick
you will need to know the Amps that your system will consume and need to operate correctly and you have to follow local electrical code .
Based on the amps that you system needs you will pick the correct wire size. Refer to Electrical codes for wire size and grounding.
Romex is one kind of cable it comes with diffferent amount of conductors and size of conductors. it is usually embedded in the walls. So if your electrician is pulling a new line he needs to use the right kind of line from panel to the location you need. If inside walls romex is fine if it is external that conduit.
Best
Technick