Ventline RV Range Hoods - Standard Range Hood - S0721-20BC Feb 07, 2014This is the Ventline S0721 Series RV Range Hood with the light and the fan. It is smooth black in color. This powered range hood will exhaust your heat, odors and steam from your RV How to Wire a Range Hood Exhaust Fan - Ask the Electrician Wiring a Range Exhaust Fan From an Existing Power Source or Outlet. Most conventional hood exhaust fans require 120 volts electrical power and they do not draw a lot of amperage therefore an exhaust fan with a light does not require it’s own circuit, so yes, a wire may be attached to one of the existing wall outlets. Electrical Wiring for a Range Hood Exhaust Fan More about Wiring a Range. Wiring a Range. Wiring a Kitchen Range Power Cord. Fully Described Electric Range Installation with a typical 220 Volt electric power cord wiring system. You may find yourself with either a 3-wire or 4-wire electric range. Lets look at how the electric range is wired and what to do if your cord does not match the plug.