Each year more and more local and state municipalities require maintenance professionals to be licensed to operate boilers and their accessories. Skilled trades courses do a decent job providing an introduction to the field of boiler operations but many are deficient in preparing students or listeners on what is essential to passing an boiler operator examination. This book has boiled down the crucial and necessary parts in layman terms so the listener can focus on what's most important.

Converting your home to solar energy is one of the best investments you will ever make. You’ve heard that installing solar power reduces the value of your home. Or that your roof will leak if you install solar power. You may even have heard that if solar panels are imperfectly installed, your house will burn down. Don’t believe any of it. They’re just not true.

Most people who are considering off grid living, are those who are wanting to escape the stress and busyness of city life, and enjoy the peace and tranquility of country living. Owning your own property, and providing for your needs with self-sufficiency projects sounds wonderful and fun, but what are the most important self-sufficiency/survival projects, and how do you accomplish them? That is where this book will help.

Whether you're a beginner or looking for an advanced guide, this valuable book will help you learn how to create an profitable and practical plan, find incredible deals, analyze properties, build a team, finance rentals, and much more—everything you need to start making millions from your investments.

Are you looking for a gardening challenge like no other? Would you like to grow organic plants and vegetables in a hydroponic garden that is sustainable? Hydroponic gardening has been around for centuries and has been used by different cultures from around the world. Its simple concept is that plants grow in water, fertilized in a symbiotic relationship with aquatic creatures like fish, snails, and others. The result is a complete eco-system that benefits all; the plants, the marine creatures, and you.

The Ultimate Preppers Guide for Off-Grid Survival Tactics is a must-listen book for anyone who wants to ensure they become more self-reliant and can live off-grid.

Leading an HVAC company can seem like a daunting task, with too few hours in the day, too many petty management issues, and problems HVAC contractors in large businesses don't seem to face. The E-Myth HVAC Contractor offers you a road map to create a business that's self-sufficient, growing, and highly profitable. Take your company to levels you didn't think possible with this unique guide!

Heating and air conditioning systems run on simple principles, and ignorance of those can cost you more than you can dream! This audiobook gives you the tools to empower yourself so you will never again have to blindly trust what others are telling you and you can troubleshoot minor problems yourself.

Untangle the jargon and design your solar power system from scratch—even if you're new to this! Thomas Edison once said he'd invest in solar energy if he could. Now, you can make it a reality. Amidst the urgency to combat pollution from fossil fuels, solar energy stands out as the greenest and most profitable solution. Imagine harnessing sunlight's abundant energy to power your life – from calculators to entire homes.

Since the beginning of human history Mars has been an alluring dream - the stuff of legends, gods, and mystery. The planet most like ours, it has still been thought impossible to reach, let alone explore and inhabit. Now with the advent of a revolutionary new plan, all this has changed. Leading space exploration authority Robert Zubrin has crafted a daring new blueprint, Mars Direct, presented here with engaging anecdotes. The Case for Mars is not a vision for the far future or one that will cost us impossible billions.

Would you like to start a marijuana business with zero experience? Having a personal supply sound more than good? Then you need to keep reading! Here it is what you will find inside: what marijuana is and how can you use it; which are the first steps to start your marijuana business; how to choose the best nutrients for your plants; how to cure your plants step by step; and much more! But to do it, at best you will need a professional guide! So, don't lose time anymore!

How does soap know what's dirt? How do magnets work? Why do ice cubes crackle in your glass? And how can you keep them quiet? These are questions that torment us all. Now Robert L. Wolke, professor emeritus of chemistry at the University of Pittsburgh, provides definitive - and amazingly simple - explanations for the mysteries of everyday life.

In January of 2023, the doomsday clock struck 90 seconds to midnight, and this unprecedented shift indicated that the world is closer to mass destruction now than it has ever been before.

Did you know that in the United States alone, an estimated 345 billion gallons of water are used daily? This shouldn’t be surprising–we live in a world of consumerism, and unfortunately, this even correlates to how we use natural resources like electricity and water. But what are you supposed to do? It’s not like you can just go without water.

Gardening is becoming popular among people who want to try a relatively low-cost and relaxing hobby at the same time. Greenhouse gardening seems to be becoming ever more popular among most of them. That may be due to the fact that managing a greenhouse garden is quite easy for an average individual. Greenhouses provides gardeners with the ability to properly control the conditions such as temperature and humidity within the greenhouse.

Regarded as one of the brightest young scientists of his generation, Lewis Dartnell proposes that the key to preserving civilization in an apocalyptic scenario is to provide a quickstart guide, adapted to cataclysmic circumstances. The Knowledge describes many of the modern technologies we employ, but first it explains the fundamentals upon which they are built. The Knowledge is a brilliantly original guide to the fundamentals of science and how it built our modern world as well as a thought experiment about the very idea of scientific knowledge itself.

With real-world considerations in mind, disaster preparedness consultant David Black shows us how to stay alive when tragedy strikes. His step-by-step actions can help us make it safely through a variety of crises, from catastrophic weather to terrorism to civil unrest. Black presents tailor-made plans for individuals, businesses, organizations, small groups, and communities to follow, in all regions of the country and broken down by type of emergency and environment.

Ignition! is the story of the search for a rocket propellant which could be trusted to take man into space. This search was a hazardous enterprise carried out by rival labs who worked against the known laws of nature, with no guarantee of success or safety. John Drury Clark writes with irreverent and eyewitness immediacy about the development of the explosive fuels strong enough to negate the relentless restraints of gravity. The resulting volume is as much a memoir as a work of history, sharing a behind-the-scenes view of an enterprise that eventually took men to the moon.

From the moment radiation was discovered in the late nineteenth century, nuclear science has had a rich history of innovative scientific exploration and discovery, coupled with mistakes, accidents, and downright disasters.

Since the beginning of human history Mars has been an alluring dream - the stuff of legends, gods, and mystery. The planet most like ours, it has still been thought impossible to reach, let alone explore and inhabit. Now with the advent of a revolutionary new plan, all this has changed. Leading space exploration authority Robert Zubrin has crafted a daring new blueprint, Mars Direct, presented here with engaging anecdotes. The Case for Mars is not a vision for the far future or one that will cost us impossible billions.

Most gardeners realize that plants need to be fed but know little to nothing about the nature of the nutrients involved or how they get into plants. Teaming with Nutrients explains how nutrients move into plants and what both macro-nutrients and micro-nutrients do once inside. It shows organic gardeners how to provide these essentials.

Beer offers an amusing and informative account of the art and science of brewing, examining the history of brewing, and how the brewing process has evolved through the ages. The third edition features more information concerning the history of beer, especially in the United States; British, Japanese, and Egyptian beer; beer in the context of health and nutrition; and the various styles of beer. Author Charles Bamforth has also added detailed information on prohibition, Sierra Nevada, and life as a maltster.

How does soap know what's dirt? How do magnets work? Why do ice cubes crackle in your glass? And how can you keep them quiet? These are questions that torment us all. Now Robert L. Wolke, professor emeritus of chemistry at the University of Pittsburgh, provides definitive - and amazingly simple - explanations for the mysteries of everyday life.

From the pioneers of Los Alamos who got up close and personal with the cores of atomic bombs, to the hapless engineers in Soviet fuel-processing plants who unwittingly mixed up a disaster in a bucket, and from the terrifying impact of a tsunami at Fukushima to the mystery of the recent Russian incident, Meltdown explores the past and future of this extraordinary and potentially lethal source of infinite power

What would you do if a time machine hurled you thousands of years into the past...and then broke? How would you survive? With this book as your guide, you'll survive - and thrive - in any period in Earth's history. Best-selling author and time-travel enthusiast Ryan North tells you how to invent all the modern conveniences we take for granted - from first principles. This manual contains all the science, engineering, art, philosophy, facts, and figures required for even the most clueless time traveler to build a civilization from the ground up.