Carbon Monoxide Release After Hot Water Tank Replacement Done Incorrectly

Incident Investigation

Carbon Monoxide Release After Hot Water Tank Replacement Done Incorrectly

October 1, 2024

Gas

Reference Number:

II-1769734-2024 (#52490)



Location: Chilliwack
Regulated industry sector: Gas

Incident overview

An incorrectly installed gas water heater in a home caused carbon monoxide to leak undetected into the living space, resulting in two occupants experiencing repeated headaches. The Category III water heater was improperly vented into an existing metal system designed for natural draft appliances, and a required installation permit was not obtained.

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