A stored gas inflator having a chamber. The chamber houses a quantity of stored gas. The chamber is sealed by a burst disk. A frangible support is also added. The frangible support is designed to support the burst disk. The frangible support breaks during deployment of the inflator. The inflator is further constructed such that when the temperature of the inflator exceeds a threshold level, the gas is vented out of the chamber through the frangible member.