This highlighted and tabbed 2018 International Mechanical Code book will help you find the answers quickly. This book is highlighted and tabbed for the PSI / NASCLA Contractor exam as well as all ICC, State and local building inspector exams. Description of the book -
Addresses the design and installation of fuel gas systems and gas fired appliances through prescriptive and performance requirements. For the most current adoptions details go to International Code Adoptions
Key changes include:
- A new Section was added to recognize arc-resistant CSST products.
- The code now allows Schedule 10 steel pipe to be used, whereas previously, Schedule 40 was the lightest steel pipe material allowed. Schedule 10 steel pipe joints are allowed to be welded, brazed, flanged or assembled with press-connect fittings. Schedule 10 pipe cannot be threaded.
- The code clarifies that appliance shutoff valves located behind movable appliances, such as ranges and clothes dryers, are considered to be provided with the required access.
- The code now calls for the plastic vent pipe material to be labeled as complying with the standards for the specific pipe material as called out by the manufacturer.
- The clearances between direct-vent appliance vent terminals and openings in the building exterior that could allow combustion products to enter the building have been revised.