Marc Posted July 14, 2011 Report Share Posted July 14, 2011 I'd like to first confirm identification of the gas line on the right side of this photo as CSST: Click to Enlarge 51.35 KB Now assuming that the identification is correct, isn't there a part missing on the connection in this close up? Click to Enlarge 34.21 KB Thanks in advance. Marc Quote Link to comment Share on other sites More sharing options...
Hearthman Posted July 14, 2011 Report Share Posted July 14, 2011 This is CSST with a floor flange mechanical coupling. Brand should be legible on the yellow plastic jacket. With that info. you can cross-check with the mfr. but I don't think it would be a problem per se--just a more expensive fitting than needed. However, that coupling would allow more movement of the tubing without support so perhaps they would get nervous about it. [:-monkeyd Now, as for the gas line lying on the attic floor connected to a flexible appliance connector, what's the larger picture? Quote Link to comment Share on other sites More sharing options...
Marc Posted July 15, 2011 Author Report Share Posted July 15, 2011 The 2nd photo is a close up of the 1st one. Here's another: Click to Enlarge 38.08 KB Marc Quote Link to comment Share on other sites More sharing options...
Bill Kibbel Posted July 15, 2011 Report Share Posted July 15, 2011 It's a flange-mount fitting. The exposed threads on the fitting can screw into the female threads of a flange. What appliance is connected to the flex connector? Quote Link to comment Share on other sites More sharing options...
Marc Posted July 15, 2011 Author Report Share Posted July 15, 2011 All gas appliances (water heater, furnace, ventless fireplace, stove) that I could see had connections by non-CSST flexible connectors. The CSST was just for piping from a makeshift manifold on the attic floor to the appliance local shut off valves. Marc Quote Link to comment Share on other sites More sharing options...
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