The dehumidifiers can overheat, smoke and catch fire, posing serious fire and burn hazards. They are being recalled due to serious fire and burn hazards with $4.8 million in property damage reported. 'These dehumidifiers have already caused structure fires and approximately 850,000 were sold in Canada,' said Vezina. Captain Randy Vezina, Fire Prevention officer with North Bay Fire & Emergency Services is warning homeowners today of a dehumidifier that poses a fire hazard.