Defective Water Heater Causes Explosion
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Case Overview
This case takes place in Arizona and involves a residential hot water heater that exploded immediately after installation, causing serious injuries as well as thousands of dollars of property damage. The Plaintiff in this case is a woman and her family, who owned a home in a remote area of Montana that they intended to use as a vacation property. The house had undergone extensive renovations after it was purchased by the Plaintiff, including an overhaul of its plumbing system. On the day of the incident in question, the Plaintiff was preparing to turn on the hot water system, which was new from the factory and had just recently been installed. The house was equipped with external propane tanks for heating and cooking, which were also newly installed and filled. After testing to make sure there were no leaks in the propane tanks or lines, the Plaintiff returned to the house to ignite the burner under the water heater tank. When the Plaintiff activated the pilot light, an explosion occurred, causing third-degree burns as well as serious structural damage to the house. After an inspection of the property, it was determined that the house would need to be demolished and rebuilt. The Plaintiff claimed that she followed all of the necessary steps to ignite the heater safely, and that the explosion was caused by the lack of pressure testing or a defect in the unit’s design and/or manufacture.
Questions to the Environmental expert and their responses
Please discuss your background in working with hot water heaters and propane tanks.
I have been a fire chief across the globe for over 30 years, and as a result I am very familiar with fires and explosions, especially as they relate to gas and propane. This specific experience comes from my work in the field, where I had the opportunity to investigate over 200 incidents of propane explosions throughout the United States. I've performed extensive tests on propane and gas tanks, and currently consult on fire safety and explosions throughout the country.
Can you determine the cause of accident in this case?
In cases like these, the culprit is usually a slow lead in a gas line within the home near the unit. This causes a buildup of flammable gas on the floor, which can remain undetected by persons in the room under the right conditions. When the Plaintiff in this instance went to light the unit, it likely caused the gas accumulation in the confined space to ignite as well. These leaks can come from compromised seals on the gas lines that attach to the unit, which would support the Plaintiff's claim that the unit was defectively manufactured.
About the expert
This expert is a graduate of City University of New York with a Bachelor of Science in Fire Science and Environmental Management and Policy and has been involved in the fire safety and explosion investigation field for over 35 years. His structural fire and explosion experience on scene for various types of occupancies has given him an in depth knowledge of building construction, fire behavior, and post investigation techniques for analyzing damage assessment and fire cause and origin. This expert is a certified fire investigator and a certified fire & explosive investigator. He is experienced in most NFPA and National Fire and Building Codes. This expert currently serves as a fire safety consultant at a major Southeastern US forensic consulting/fire investigation firm.

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About the author
Joseph O'Neill
Joe has extensive experience in online journalism and technical writing across a range of legal topics, including personal injury, meidcal malpractice, mass torts, consumer litigation, commercial litigation, and more. Joe spent close to six years working at Expert Institute, finishing up his role here as Director of Marketing. He has considerable knowledge across an array of legal topics pertaining to expert witnesses. Currently, Joe servces as Owner and Demand Generation Consultant at LightSail Consulting.
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