Gas Piping Defect FAQs
- POST a QUESTION or COMMENT about gas piping in buildings: defects, inspection, trougleshooting, leaks, repairs
FAQs about gasas piping in buildings for natural gas, LP gas, or propane distribution.
In this article series on gas piping we provide descriptions and photographs of unsafe gas piping, indications of unsafe or improperly operating gas appliances, gas meters, and other gas installation defects are provided.
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FAQs on LP Gas or Natural Gas Fuel Piping Defects
These questions & answers about problems in LPG or Natural gas piping were posted originally
at GAS PIPING CLEARANCES, CODES & DEFECTS - we recommend that you check out that defect list.
Safety Warnings for Gas Leaks
Immediate LP or natural gas safety hazards: if there is evidence of an LP or natural gas leak at a building, gas odors, for example, you should:
- Do not do anything that is likely to cause a gas explosion, such as lighting a match, operating an electrical switch, or even using a telephone in the building
- Leave the building immediately and keep a safe distance away - 100 feet or more.
- Notify other building occupants of the safety concern
- Contact the local gas company and/or fire department
Heating equipment which the inspector (or building occupant or manager) judges to be an immediate life safety hazard should be shut down and appropriate emergency services called.
See GAS LEAK DETECTION, LP / NG for leak detection procedures and alternatives.
On 2012-07-29 by (mod) -
Pat a leaking gas line is an IMMEDIATE SAFETY HAZARD - that is not something to delay for shopping around, unless you have someone first TURN OFF THE GAS SUPPLY - you should not even be in the house.
A spark from a telephone or a light switch can cause an explosion.
Once the dust settles, you may find a source of financial aid through your local senior citizens association, health department, better business bureau, special programs such as the Christmas in April Association, or even just asking the plumber for a break.
On 2012-07-23 by Pat C
Is there financial help to repair a leaking gas line for disabled seniors?
On 2012-05-07 06:26:33.971870 by randy
is there any provision that states the minimum distance of LP-gas pipe from any source of heat?
On 2012-01-10 by Duane
I think the below Safety Warning has a mis-print. Why would gas be supplied to an electric clothes dryer?
Safety warning. Flexible soft copper piping defect example: if flexible soft copper tubing has been used to supply municipal (natural) gas to a electric clothes dryer, hot water heater, or heating system, this is not a recommended installation and it may be prohibited by local codes - "black iron" steel piping is required in many jurisdictions
On 2012-01-08 by (mod) -
Gary, there are no cast iron gas pipes; cast iron piping is used for plumbing drains.
If you are referring to black iron pipe (more properly called black carbon steel or "steel gas piping" commonly used for low pressure gas piping, I have indeed found leaky gas piping at old properties where that material was used, but the leaks occurred outside due to corrosion, or inside due to (usually faulty connections).
Indeed steel gas piping passing through or in contact with quickset additives or cinder aggregates is exposed to extra corrosive effects - and piping should not be embedded in those materials without an approved protectiion.
Underground piping is treated with a protective coating.
Check the National Fuel Gas Code (AGA or NFPA) and see [NFPA 54/ANSI Z223.14] [NFPA 58] for requirements for low pressure gas piping.
On 2012-01-07 by Gary
If a cast iron gas line is going thru a cement wall what is the serverity if the gas line isn't protected with some kind of cover?.
...
Continue reading at GAS PIPING CLEARANCES, CODES & DEFECTS - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.
Or see these
Gas Piping Articles
- GAS PIPING, VALVES, CONTROLS - home
- FLARE FITTINGS
- FLEXIBLE GAS CONNECTOR INSTALL
- GAS CONNECTOR for BBQ GRILL
- GAS PIPING CLOG REPAIR
- GAS PIPING CLEARANCES, CODES & DEFECTS
- GAS PIPING, FLEXIBLE CSST
- GAS PIPING SIZE & MATERIAL
- GAS LEAK DETECTION, LP / NG
- GAS PRESSURES LP vs NATURAL GAS
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Citations & References
In addition to any citations in the article above, a full list is available on request.
- U.S. Energy Information Administration - eia.doe.gov/
- U.S. Environmental Protection Agency - epa.gov/solar/energy-and-you/affect/natural-gas.html
- At Natural Gas.Org www.naturalgas.org/environment/naturalgas.asp#emission you’ll find a table of combustion products
- At geocities.com/rainforest/6847/report1.html is an interesting and detailed though not “neutral” report on the components and contaminants in the combustion of natural gas. You’ll see a long long list of emissions products, but look again – most of the contaminant levels listed are in the picograms.
- apvgn.pt/documentacao/iangv_rep_part1.pdf lists the components in natural gas exhaust from vehicles
- The Need Project, Manassas, VA: need.org/needpdf/infobook_activities/SecInfo/NGasS.pdf
- Kroschwitz, Jacqueline I., and Mary Howe-Grant (eds.). "Gas, Natural." In Encyclopedia of Chemical Technology. 4th ed., vol. 12. New York: John Wiley and Sons, Inc., 1993.
- Tussing, Arlon R., & Bob Tippee. The Natural Gas Industry: Evolution, Structure, and Economics. 2nd ed. Tulsa, OK: PennWell Publishing, 1995.
- Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
- In addition to citations & references found in this article, see the research citations given at the end of the related articles found at our suggested
CONTINUE READING or RECOMMENDED ARTICLES.
- Carson, Dunlop & Associates Ltd., 120 Carlton Street Suite 407, Toronto ON M5A 4K2. Tel: (416) 964-9415 1-800-268-7070 Email: info@carsondunlop.com. Alan Carson is a past president of ASHI, the American Society of Home Inspectors.
Thanks to Alan Carson and Bob Dunlop, for permission for InspectAPedia to use text excerpts from The HOME REFERENCE BOOK - the Encyclopedia of Homes and to use illustrations from The ILLUSTRATED HOME .
Carson Dunlop Associates provides extensive home inspection education and report writing material. In gratitude we provide links to tsome Carson Dunlop Associates products and services.
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