The Utilities for the structure are categorized under Electrical, Heating, Air Conditioning, Plumbing, Water Heater, and Gas. Each category is broken down into additional sub category areas of information that will be visible in the drop-down menus on the left. There are actually too many categories that are included. Take them in bite sized pieces. Read and digest and come back as you may want to review some things in a step by step way. This is a resource to use as you want or need.