Camplux 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater - WhiteSA Safety Standard CSA safety standard approved portable tankless water heater, flame failure device, anti freezing protection, and over heating protection. Automatically decreases water pressure between 3. 0 110 PSI. The anti freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of a long time without use. The water heater will shut off automatically when high water temperatures are detected above 176 F.