Countdown believes the explosion of an oil heater that showered a bedroom in sparks and hot oil was an isolated incident.
The supermarket will refund the heater's owner and have the faulty appliance tested to establish what caused it to explode in a Gisborne home last week.
But it says there is no evidence to suggest the products should be recalled.
Teresa Taylor has told how her family heard a loud bang shortly after switching on the heater last week.
"The heater had exploded in the middle and hot oil was blown all over the walls," Ms Taylor said.