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Cooker and the pan was used at the time of the explosion. Energy Safety was of the opinion that the pan was too large to be safely used with the canister cooker, and therefore identified the likely cause of this event as misuse.
Gas Technical Regulators Committee (GTRC) has issued guidance identifying that canister cookers have issues with the canister heating up when used with a large pan. This can cause the canister to explode.
The canister cooker appears not to have been lawfully sold in New Zealand as it does not appear to have a declaration on the Gas Appliance Database and is not marked with the gas safety compliance mark.
Energy Safety has conducted a consequential audit on the supplier of the cooker. This audit involved a site visit to the suppliers’ premises. This model of canister cooker was not found offered for sale at the time of the Energy Safety visit.