S-7 Limited Contractor (2024-07-24)

2012 NFPA 54: National Fuel Gas Code provides revised, industry accepted guidance for the safe installation and operation of gas piping systems, appliances, equipment, and accessories.

Establishes minimum regulations for mechanical systems using prescriptive and performance-related provisions. The IMC was developed with broad-based principles that make possible the use of new materials, methods and design.

Important changes in the edition include:

Clothes dryer exhaust terminals required to be at least 3 feet from any opening into a building.
Polyurethane spray-applied foam on the exterior of ducts in attics and crawl spaces required to meet specific smoke and flame index limits.
Fire and smoke dampers must be provided with approved access for inspection and maintenance.
Refrigerant tables updated to include new refrigerants.
Addition of condensate termination identification markings and discharge restrictions.
Approved factory-built combination intake/exhaust terminations permitted, relaxing separation requirement.
30% reduction in minimum mechanical ventilation for whole-house balanced ventilation systems.
Continuous operation requirement for manicure and pedicure station exhaust systems.
Grease duct horizontal cleanout required within 3 feet of a horizontal discharge fan.

From simple applications to multi-load and multi-temperature systems, this one-of-a-kind, comprehensive text prepares readers to use the latest hydronics to create systems that deliver the ultimate in comfort, reliability and energy efficiency. Abundantly illustrated with product and installation photos and hundreds of detailed, full-color schematics, MODERN HYDRONIC HEATING, Fourth Edition, transforms engineering-level design information into practical applications useful for technical students and heating professionals alike. The revised edition features the latest design and installation techniques for residential and light commercial hydronic systems, including use of renewable energy heat sources such as air-to-water and geothermal heat pumps, hydraulic separation, variable speed circulators, distribution efficiency, heat exchangers, buffer tanks, heat metering, hydronic cooling, system balancing and proper system documentation. Anyone involved in the heating trade will benefit from this preeminent resource of the North American heating industry, which is equally well-suited for formal education courses, self-study or on-the-job reference.

Liquefied Petroleum Gas Code provides minimum safety requirements for all liquefied petroleum gas (propane) installations, from small cylinders installed at residences to large bulk storage facilities that can exceed 100,000 gallons. The code includes minimum requirements for safe handling during LP gas transfer, including operator qualifications, maximum filling quantity in containers, and pre-transfer inspections to ensure containers are fit for continued service.

This comprehensive code comprises all building, plumbing, mechanical, fuel gas and electrical requirements for one- and two-family dwellings and townhouses up to three stories.

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Flip through the 2021 I-Codes series and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.

Soft Cover Tabs Contain: Clear plastic, self-adhesive tabs that have the key sections of the code printed on them in an easy-to-read format. The soft cover tabs can also be used in the 2021 I-Code Commentary series.

Flip through the 2021 IMC and find frequently used sections fast! You'll be surprised how easy it is to find what you are looking for. These tabs were created by industry experts who carefully identified the most referenced sections in the code.

Loose Leaf Tabs Contain: Full-page inserts tabs that have the key code sections printed on them in an easy-to-read format.

Soft Cover Tabs Contain: Clear plastic, self-adhesive tabs that have the key sections of the code printed on them in an easy-to-read format.

Compact and pocket-sized, this handy reference contains thousands of facts and figures relevant to pipefitters, steamfitters-anyone concerned with layout and installation of pipe.