Home Guide to Plumbing, Heating and Air Conditioning A Popular Science Book Home Guide to Plumbing, Heating and Air Conditioning by George Daniels POPULAR SCIENCE HARPER & ROW New York, Evanston, Son Francisco, London ACKNOWLEDGMENTS The author wishes to thank the following firms for their assistance in the prep aration of this book: Sears, Roebuck and Co.; Montgomery Ward and Co.; Ameri can Standard, Plumbing and Heating Division; Crane Co.; The Donley Brothers Co.; Copper Development Association, Inc.; Grinnell Co., Inc.; The Heyman Co.; Ace Industrial Hardware Co.; American Gas Association, Inc.; Republic Steel Corp.; United States Steel Corp.; Committee of Steel Pipe Producers, American Iron and Steel Institute; National Oil Fuel Institute; Holman, Inc.; General Motors; Space Conditioning, Inc.; De Palma Brothers; Danbury Plumb ing Supply Co.; Hoffman Fuel' Co.; Westinghouse Electric Corp.; General Electric Corp.; Airtemp Division of Chrysler Corp.; Carrier Air Conditioning Co.; Philco Corp.; Fedders Corp.; Electromode; Dent Electric Co.; Stanley Tools; Plastics Pipe Institute; Lennox Industries, Inc.; Air Conditioning and Refrigeration Institute. Copyright © 1967, 1976 by George Daniels Published by Book Division, Times Mirror Magazines, Inc. Brief quotations may be used in critical articles and reviews. For any other repro duction of the book, however, including electronic, mechanical, photocopying, recording orothermeans, written permission mustbeobtained from the publisher. Library of Congress Catalog Card N urn ber: 67-10841 ISBN: 0-06-010957-2 First Edition, 1967 Nine Printings Second Edition, Revised and Updated, 1976 Fourth Printing, 1977 Manufactured in the United States of America Contents Introduction l. How Your Plumbing Works 7 2. Plumbing Tools 15 3. Plumbing Materials and Their Use 23 L+. Your Source of Water 47 5. Common Plumbing Repairs 56 6. How to Alter or Extend Your Plumbing 76 7. Outdoor Plumbing 94 8. Septic Tanks and Drainage Fields 97 9. How Heating Systems Work 107 10. How to Install a Central Heating Unit 126 1l. Installing the Heat Distribution System 136 12. Heating System Repairs 150 13. Space Heaters 158 1L +. Fireplaces 165 15. Air Conditioning 174 Index 183 Introduction WE HAVEN'T had our modern plumbing, our automatic heating, and our air conditioning very long, and considering the obstacles that have impeded their development over the years, it's a wonder we have them at all. England, for example, once rated the burning of coal as a capital offense, and at least one Britisher was executed for the crime. So it's understandable that heating innova tors may have become a bit timid. In France, advances in cooling rather than heating were blocked by the government. When 16th century Frenchmen built a thriving business by carting tons of snow and ice from the mountains to chill their summer foods and make frozen delicacies, they might soon have progressed to air conditioning by the same means. But the icemen's taxes were boosted until the business collapsed, and artificial cooling was forgotten for another hundred years. (More about the rigorous past of heating and cooling shortly.) Plumbing, on the other hand, made slow headway largely because our ancestors of long ago rarely took much interest in it. If they had they might have copied an almost incredible example 4,000 years ago. At that time, archaeologists now know, the plumbing in the Cretan palace of King Minos was so advanced it incorporated the most important features found in our plumbing codes today. Its sewerage system, for instance, was vented as required by modern health regulations. Its toilets not only could be Hushed, but, like all present-day plumb ing fixtures, were designed to seal out sewer gases. And, for a final master's touch, the terra cotta water-supply pipes w'ere tapered to increase the How velocity at points where sediment might otherwise accumulate. But, along with the ancient culture that created them, all these things and their related ideas of sanitation, vanished. If they had not, many of the great plagues of history might never have occurred; and, in addition to the name of King Minos, history might have recorded the name of his plumber. Though hygienic refinements faltered and progress was slow, the water supply aspects of plumbing eventually revived on a major scale. What was probably the first long-distance municipal water system was developed for Jerusalem by King Hezekiah in 727 B.C. To do it, he had his workmen tunnel a third of a mile through rocky hills to bring water from the Pool of Siloam to the city. The finished job worked beautifully. To the ancient Romans, however, goes the credit for first supplying water in the truly grand manner. They not only did their plumbing on an unprece dented scale, but coined the word itself, and developed what was undoubtedly the first method of cheating the water company. Around Nero's heyday (34 to 68 A.D.) they were getting their water through as many as fourteen aqueducts with a total length of almost 360 miles. Siphon systems lifted the How over hills, towering stone trestlework carried it across valleys. Approximately 130 million 2 INTRODUCTION gallons a day poured into the city where more than 90 million gallons went into 247 reservoirs, nearly 40 decorative fountains, and close to 600 public water supply basins operating around the clock. At the basins, official tenders supplied the Roman man in the street with his water on a fill-your-jug-for-cash basis. And, as the business brought in a total close to $40,000 a year, shady characters oc casionally found their way into it. As might be expected, they also found a way of boosting their profits by "beating the meter." The "meter" in those days was simply a piece of pipe a little less than a foot long out of which water flowed constantly from the main. As the meter pipe was made of soft lead not quite an inch in diameter, the slick water tenders simply enlarged it with a little prying on nights when things were slow. And from then on, they enjoyed a greater supply of water and a more rapid procession of customers than the city fathers had planned. So Rome's water officials had to switch from lead pipe to harder brass and bronze. But it was lead, known to the Romans as plumbum, that gave plumbing its name. The ancient Roman plumber, however, was called a plumbarius, and frequently was a woman. At least, we know that many Romans of the fair sex owned plumbing shops, as much of the pipe unearthed from the ruins bears the stamp of a feminine name. Their best customers, of course, were the government and the wealthy citizens who had water piped directly to their homes. Along with their water supply, the latter received a status symbol of sorts by having their names stamped into the pipe together with that of the plumber. As the pipe was exposed, the monogram also made it awkward for less-than-honest Romans to tap into it for their own benefit. And it seems that Romans with such inclina tions were rather plentiful. In fact, Sextus Julius Frontinus, one of Rome's most dedicated water commissioners toward the end of the century, found some of them bleeding the aqueducts before they even reached the city, and others tapping into the city mains and fountain supply pipes - while some of his own hirelings were juggling the metering pipes at distribution points for a tidy profit. In any event, the Roman plumbers were efficient. They made their own pipe by roIling a lead sheet around a wooden cylinder and soldering the seam. They did it so well that their ancient pipes, tested in modern times, have withstood pres sures as high as 250 pounds per square inch-enough to blow your car's tire to shreds. Much of Rome's prodigious water supply went into the baths for which the city's inhabitants were famous. There were, however, no bathtubs in the luxury homes of the day as it was customary to merely flood the bathroom and use it as a pool. A roaring fire under the concrete floor warmed the water, and the excess flame and smoke rose through the hollow tiles behind the marble walls and created a sort of sauna. But this was a family affair. Important guests were taken out to the lavish public baths that served as the men's clubs of the era. Some of these, whose pools were replenished through bronze pipes with silver spouts, could accommodate better than 3,000 bathers in a building about the size of New York's old Penn Station-which, incidentally, embodied many architec tural features of the Roman bath clubs. Some of the luxurious bath establish ments reserved certain hours for women - and a few operated on a coed basis. INTRODUCTION 3 The bath and its plumbing, however, all but disappeared with the Roman Empire, condemned by many Christian churchmen as immoral. The bathtub, apparently first used by the Greek athletes of ancient Nemea, became an unmen tionable thing through Europe's Dark Ages. But, with filth and pestilence ram pant, there were many wise defenders of the tub. England's Henry IV struck a blow in its favor in 1399, when he created the military order of the Knights of the Bath. The selected warrior was assured at least of a shave, a haircut, and a good tub bath, as all three were part of the ceremony that pledged him to purity when he became a member of the order. Centuries passed before the bathtub could shed its evil stigma. Even in the 19th century, long after aeronauts had ridden horses into the sky slung under balloons, crossed the English Channel by air, and set an altitude record of nearly five miles, you still needed a doctor's prescription to use a bathtub in Boston. So we can appreciate the courage of Britain's Sir John Harington when, almost three centuries earlier, he sought acceptance unsuccessfully, for his invention - the water closet. But, unlike many others who helped make our modern plumbing possible his name is at least recorded, and his contribution has made the grade. While all this was going on, the science of heating was muddling through. Because man urgently needs to be warm, it got its start long before plumbing apparently in the Stone Age. Evidence indicates that our relatives of that period made use of fire, though at first they probably had to rely on Nature to create it by lightning. Later, we know they brought fire into their cave homes, for both light and heat. And their relics tell us that their combination lamp and heater was often a skull stuffed with fat-soaked moss. The skulls, charred from use, have been found on cavern ledges, and evidently provided warmth and illumination for the primitive cave-wall decorators whose art work has been discovered in modern times. Wood has usually served as fuel for the major heating jobs of the past, but just about everything else that burns has also been used, including the dried manure that has fed the shepherds' fires in treeless lands over the centuries. Even in a primitive shelter, the problem of the warming fire was smoke, for the true chimney wasn't invented until the 1300's and three more centuries passed before it was available to the general public. In the meantime, plain folks in most of the civilized world led either a cold or sooty existence. The pit dwellers in parts of Europe and Russia, residing in crudely roofed holes in the earth, warmed themselves with a fire on the mud floor. When their heating system threatened them with suffocation they simply banged a hole in the roof. Elsewhere, a permanent hole in the center of the roof, with a hearth directly below it, improved things somewhat. But while the smoke escaped through the hole most of the heat went with it and the rain came in. So the hard-put house holders capped the hole with a little open-sided steeple called a "smoke louver" to let the smoke out without letting the rain in. The chimneyed fireplace, when it finally appeared, was definitely better than a hole in the roof. But it, too, had its troubles - and its detractors. There were many who claimed, for example, that without the usual cloud of smoke at the ceiling to preserve the rafters like smoked hams, the roof would rot and cave
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