Macro Gas Heater Powered by Citygas Replacement to the Same Brand at Seastrand

Gas Leak Inspection and Licensed Gas Heater Replacement: The homeowner reported an unusual smell near the kitchen and a gas water heater that had been malfunctioning for some time. Recognising the potential safety risk, they contacted Homeone for an urgent inspection.

Our licensed team attended on-site with a calibrated multi-gas detector. The detector recorded carbon monoxide (CO) at 1000 ppm in the vicinity of the heater — a hazardous level. For context, the Singapore workplace exposure limit for CO is 25 ppm over an 8-hour day; at 1000 ppm, occupants are at risk of CO poisoning within a short period of exposure.

Carbon monoxide is produced when a gas appliance burns fuel incompletely — typically due to a worn burner, blocked flue, poor ventilation, or internal faults developed through age and use. Unlike a fuel gas leak, CO is odourless and colourless, which is why a faulty heater can quietly become dangerous before the occupants realise. The smell the homeowner noticed was most likely combustion by-products from the failing burner, not the gas itself.

Given the reading and the condition of the appliance, our team isolated the gas supply, ventilated the area, and replaced the heater with a new licensed unit, commissioned and tested to confirm safe combustion and zero CO output in normal operation.