These days, energy is getting more and more expensive. Energy companies will take everything they can from you, and the government is not going to help you. You need to use as little energy as possible, within reason. Produce energy if possible. This book is about how to save energy and save money. This book will help you seal your house up, so it's not bleeding energy, select energy efficient appliance, HVAC, and lighting. Follow the principles in this book, and you will save money. This book is not intended to cover each and every possibility to save money and energy. It's intended to be a good guide and big help to you.