Forensic Engineering Analysis of Unvented Gas Appliances in High Altitudes

Abstract

A family moves into a house about 4,000 feet above sea level. They use a refrigerator powered by LP gas. A short time after the refrigerator was installed, they notice and complain about smells and soot. They take their 9-month-old to a hospital in response to persistent crying. A short time later, they notify the refrigerator manufacturer, which examines and tests the refrigerator. They find the refrigerator’s burner venturi blocked, generating high levels of carbon monoxide. Twelve years later, the parents bring a lawsuit against the installers of the refrigerator. At that time, the appliance is not available, and the house has been remodeled. A forensic engineering study is assigned to determine the effect high altitude has on this particular appliance design.