For 15 years our company has published content with clear steps to accomplish the how, with high quality sourcing to answer the why, and with original formats to make the internet a helpful place. Because the CSST snakes its way around bends and obstructions as one solid piece of tubing, you only have a fitting at each end of the line. My first suspicion would be that the tubing acts like a lightning rod of sorts. Current through Register 1492, March 31, 2023. If you have an older home with CSST, it is important to check that the electrical bonding and grounding are in place and working properly. Copyright 2023 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Notwithstanding the provisions of this section, metallic piping joints and fittings which do not otherwise meet the requirements of this section may be utilized if approved by the Board or otherwise have met the product acceptance requirements of 248 CMR 3.04(1): Board Required Product-acceptance. CSST needs to be electrically bonded and grounded to prevent damage to the line. Chapter 24 prohibits the reconditioning or reuse of any pipe, fittings or valves, unless theyre free of debris and are suited to the intended purpose. Hundreds of thousands of houses have these corrugated appliance connectors in service right now. State fleets must also acquire AFVs according to the requirements of the Energy Policy Act (EPAct) of 1992 and the Massachusetts Office of Vehicle Management (OVM) must approve any light-duty vehicle acquisition. 248 CMR 4.00 through 8.00, collectively the Massachusetts Fuel Gas Code, governs theinstallation of fuel gas piping systems, fuel gas utilization equipment, and related accessoriesthroughout the Commonwealth. I know as I have installed thousands of linear feet of the heavy material. The provisions of this section shall only apply to premises owned gas meters, which are comprised of a secondary meter and meter assembly installed on the downstream portion of the gas piping system of a serving gas supplier's meter. Multi-family Dwellings Diversity Factor in Percent of Total Load for Domestic Gas Ranges with connected Load Ratings of 63,000 Btu/hr. Flexible gas connector tubing is intended for limited movement after installatin. To see if you have CSST, look for long stretches of yellow-jacketed, flexible tubing in your basement, crawlspace, or attic. Massachusetts Fuel and Gas Code. Over the years I have inspected so many homes with flexible gas lines,also known as CSST. The maximum allowed bending radius is usually 3-inches for 3/4" CSST and up to 5-inches for 1" or larger CSST. Chapter 112, Sections 61 to 65E), Water Filtration and Water Dispensing Systems, Adjustment and Replacement of Gas Controls, Limited LP Installers Connecting Propane Tanks, contact the Board of State Examiners of Plumbers and Gas Fitters. The CSST has many advantages. Virtually all state and local code authorities permit its use and many contractors are finally embracing it. There are lots of instances of houses that have been destroyed in gas fires because CSST pipe was ruptured by a lightning strike. A .mass.gov website belongs to an official government organization in Massachusetts. from USC. All agencies must purchase the most economical, fuel-efficient, and low emission vehicles appropriate to their mission. Take a look at GAS BTUH, CUBIC FEET & ENERGY, where we cite authoritative sources and (among others): One cubic foot (0.028 cubic meters) of natural gas contains about 1,050 BTUs Thank you for pointing out some confusion. (b) Install or cause to be installed a gas appliance in a residence. Photo at left: coated corrugated flexible stainless steel gas connector tubing. We look forward to more photos, comments, questions. Are there advantages to using this pipe? 404.6 Underground penetrations prohibited. In regard to your article on the CSST systems being installed in new homes. The manufacturer accepts no responsibility for improper installation, and does not provide in any great detail, of detrimental or catastrophic failure if done so. This issue may have been corrected already, but it still needs to be noted. Individual plumbing fixtures shall be separately trapped by a water seal trap placed as close as possible to the fixture outlet. A typical black iron pipe installation has many 90-degree, tee, and coupling fittings. Please let us know how we can improve this page. or more per Range. Let's get to it! Many homeowners scratch their heads when they see bending yellow gas lines in their homes instead of the traditional black steel pipes. Our commitment is to provide clear, original, and accurate information in accessible formats. Photo: Serhii Ivashchuk / iStock / Getty Images. I am about to buy a new gas range to replace the old electric one. Flex lines are all the hvac guys are running inside the house. Lightning has caused many house fires that have flexible gas lines.". This clever revamp of the traditional black steel pipes allows natural gas to travel to your fireplace, furnace, stovetop, and any other appliances that use natural gas. If your house was built in the United States between the early 90s and mid-2000s, you likely have natural gas piping made from corrugated stainless steel tubinga popular, flexible replacement for black steel pipes. in Speech from Catawba College and a J.D. If you do have a leak, these fittings are almost always readily accessible for adjustment. Many U.S. states and foreign countries use the IRC for their building code, sometimes with matching language. Is there another alternative gas piping material? And that's why I wanted to create this guide, to educate homeowners on the potential hazards of flexible gas lines and to bring them up on current code. And of course, covering a shut-off valve on a gas line behind drywall is probably a red flag for any code compliance inspector. Joining two or more connectors is not permitted by installation codes or product standards. The Massachusetts Department of Environmental Protection (MassDEP) provides U.S. Environmental Protection Agency Diesel Emissions Reduction Act (DERA) funding for projects that reduce diesel emissions in Massachusetts. may only utilize welded pipes and fittings when: 5.6.2.7 Galvanized. Since CSST has a much thinner wall than traditional black iron gas pipe, it should be protected from damage when outside and above ground. Some of their arguments never made sense to me. This page is located more than 3 levels deep within a topic. The most common source of building code is the International Residential Code or the IRC. 21. Since CSST is a very thin metal at around 0.3-mm thick, it is more vulnerable to lightning strikes. Plumbers and homeowners will need to follow the manufacturer's requirements and they should not bend the CSST too far. The Valves shall: Current through Register 1493, April 14, 2023. To get a quote, contact a local home inspector or licensed electrician near you to inspect your gas lines. OVM, in collaboration with the Massachusetts Department of Energy Resources, will set new minimum standards for vehicle fuel economy and work with agencies to acquire vehicles that provide the best value for the Commonwealth on a total cost of ownership basis. 1995-2023 MH Sub I, LLC dba Internet Brands. 5.1.1 Installation of Piping Systems over Five Million BTU/hr. To add a line in the future you need to have an extra gas port on the manifold within the panel. What is this material? Please limit your input to 500 characters. This code came in as a response to damage to flexible gas lines and fires in homes struck by lightning. DEAR BETSY: Congratulations! Each end of a piece of pipe must be threaded. If you need assistance, please contact the Trial Court Law Libraries. Let's look at exactly why that happens: CSST is extremely thin compared to the traditional 4 mm black pipe. Some page levels are currently hidden. (Reference Massachusetts Department of Transportation Laws and Rules 700 CMR 7.07). If you care to, Inert Gas Systems Safety - Avoid the Flammable Fire Triangle. 1. pagoda | Dec 19, 2006 09:54am | #4. Additionally, any piping installed downstream of the structure's point of delivery cannot extend through any other . Please do not include personal or contact information. While the upgrade is less likely to leak gas, corrugated stainless-steel tubing can lead to major house firesif struck by lightning. To find laws and incentives for other alternative fuels and advanced vehicles, search all laws and incentives. How Much Does It Cost to Run or Fix a Gas Line? Each of the cast fittings can be the source of a leak. Please let us know how we can improve this page. Watch this video to see how CSST pipe is installed. A lock icon ( Table of Contents Contact That's why it's important to check with your local code enforcement and review the applicable requirements for your project before beginning a residential gas piping project. In some U.S. states such as in Massachusetts, CSST is required to have a metal cover to protect it from lighting and the elements when outside. Visit SEVERAL firehouses to get different opinions. Top-requested sites to log in to services provided by the state, 248 CMR 3.00 - General Provisions Governing the Conduct of Plumbing and Gas Fitting Work Performed in the Commonwealth (effective April 30, 2021), 248 CMR 4.00 - Massachusetts Fuel Gas Code (effective April 30, 2021), 248 CMR 5.00 - Amendments to NFPA 54 (effective April 30, 2021), 248 CMR 11.00 - Education and Experience Standards and Requirements for Licensure (effective April 30, 2021), 248 CMR 3.00, 4.00, 5.00, 10.00, 11.00 - Effective Prior to April 30, 2021, Redlined Revisions to 248 - Effective April 30, 2021, Frequently Asked Questions (FAQs) Regarding New Regulation Changes. Generally, all systems must be sized and installed so as to keep a sufficient flow of gas to meet the maximum demand for each appliance inlet. Board of State Examiners of Plumbers and Gas Fitters, State Plumbing Code, Board Policies, Variance Applications, and Other Forms, CSST Installed Above Ground Exterior to a Building, Maximum Temperature for Hand Sinks in Commercial Kitchens, Minimum Drain Size With Multiple Shower Heads, Safe Waste Pans for Water Heatersand Storage Tanks, Creation of Board of State Examiners of Plumbers and Gas Fitters (M.G.L Chapter 13, Sections 36 to 38), Licensing Provisions for Registration of Plumbers and Gas Fitters (M.G.L. I have this flexible gas line in my own home in central New Hampshire and never worry about it at all. Correcting an existing installation can cost as little as $100, while replacing CSST with black pipe can cost several thousands of dollars. Each year, the Executive Office for Administration and Finance and the Massachusetts Department of Energy Resources (DOER) must set minimum percentage requirements for E85 use in state flexible fuel vehicles, depending on the availability of the fuel in the state. Can gas connectors be placed underground? I am having to replace all the plumbing in my house , and will be using pex . The pipe is extremely durable and rarely has a lightning strike cause a fire in a house with black iron pipe. Lets look at exactly why that happens: CSST is extremely thin compared to the traditional 4 mm black pipe. 20. The AFV must conform to applicable federal and state laws and regulations. Spending hundreds of dollars more for black iron pipe may be well worth it in the long run if you have a house fire. Flexible gas lines (also known as corrugated stainless steel tubing - CSST) have been installed in millions of homes in the U.S. and around the world. The Board of State Examiners of Plumbers and Gas Fitters ("Board") has voted to provide this interpretation to its licensees and inspectors with regard to the installation of corrugated stainless steel tubing ("CSST") installed underground exterior to a building. Copyright Home Inspector Secrets 2023 Mass.gov is a registered service mark of the Commonwealth of Massachusetts. If CSST is installed along drywall or in some area where nails may be used, it needs to be protected with metal plating. . The thin walls of CSST might not seem to handle as much of a strike as black iron. A parallel CSST manifold system mimics an electric panel. To find laws and incentives for other alternative fuels and advanced vehicles, search all laws and incentives. Additionally, the project inspector must approve the use. Accessible and three or six feet long: The flexible connectors cannot pass through walls, floors, or ceilings, and they cannot be hidden. These extremely flexible pipes are made from stainless steel and often come coated in a trademark yellow casing, though they can sometimes be black. Mass.gov is a registered service mark of the Commonwealth of Massachusetts. Have run thousands of feet of Gal piping for gas in exterior applications, cold gal your exposed threads on joints. Some page levels are currently hidden. All of the gas lines that feed each appliance start at a, If you use copper for gas lines in your home, be sure to paint them yellow and label them with. Gas Company says Stacked Adapter on Appliance Linevalve. She holds a B.A. Share sensitive information only on official, secure websites. View our Privacy Policy here. Installation procedures and alerts for flexible gas appliance connections You will see a number of manufacturer`s warnings and safety risks, including: Do not install flexible gas connectors in multiple or grouped sets use a single flexible connection line between the appliance and the gas supply connection point. If you have additional questions about codes specific to your area, contact your local building code officer. They have worked well for many years. The pipe in the walls acts as an interior lightning rod. The flexible connector cannot be longer than 36". If CSST is installed along drywall or in an area where nails can be used, it must be protected by a metal coating. As you can see, there is a significant multi-year gap in which Building Codes did not require proper bonding of flexible gas lines. The only specialized tool you need is a flaring tool made to fit the pipe size you are working with. It's not durable as a traditional black-iron pipe.
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