The mfgr refers to it as both a pressure regulator and a hydrator, so I think after it "burps" a bubble of smoke it inhales a little water into the smoker where it turns into steam
Neither the Auctioneer nor its employees, servants or agents shall be responsible for any neglect or default in executing bids or failing to execute bids
[7] Markets [edit] Next was or still is sold in Canada, United States, Costa Rica, Colombia, Brazil, Argentina, Luxembourg, Belgium, Sweden, Germany, Austria, Spain, Poland, Czech Republic, Slovakia, Bulgaria, Greece, Estonia, Lithuania, Ukraine, Russia, Morocco, Israel, Pakistan, Taiwan and Hong Kong
14.3 No person shall be entitled to bid at a Sale without first having completed and delivered to the Company a bidder registration form acceptable to the Company and the registration form will include an acknowledgement by a bidder that they are bound by these Conditions
1 x Make Your Own Machine