Titanium Camping Well Made Double Wall Super Light Titanium Cup

2010617no heating in a double wall cup, bad idea on a few levelslso, i prefer the 900 size for boiling 16 oz of waterit took a little longer to bring to a boil than a tea kettle i have but was still able to do so well within the burn time of my super cat alky stove4171504 061610 re titanium cups double or single wall and what.