ArcticVent ArcticVent is the only cCSAus approved solution to freeze protect plumbing vent stacks. ArcticVent can be installed in either new or existing applications where ventilation ice blockages occur due to rising condensation in prolonged freezing temperatures. Ice blockages cause hazardous methane gas to seep into homes. ArcticVent can be used under continuous power for freeze maintenance or powered when required to thaw a frozen plumbing stack. Available in electric and hydronic models.