I will be replacing an electric range and hood with a gas range and microwave hood. The range is on a 40amp circuit currently. I am not sure which circuit the hood is on, but I am fairly certain it is not a dedicated circuit. The LG appliances I will install specify separate 20amp circuits for each appliance. Given where the breaker box is in my house, it is very difficult to run a brand new circuit from the main breaker box to the kitchen.
Is it easiest to take the existing 40amp wiring into a sub breaker box for 2 20amp circuits? Or can I wire both appliances on the same circuit with the old wiring and change the breaker to 20amps? I know that a gas range is not going to pull 20amps from the wall, but I am trying to respect what the instructions (and code) says.
If I need to install a sub breaker box, what does the code say regarding location of that box? Is it code to put it in the attic? Or does it have to be reachable from somewhere inside the house?