Quadra-Fire is a registered trademark of Hearth & Home Technologies. Product specifications and pric- ing subject to change without notice. The Quadra-Fire Columbia Bay Insert direct vent gas appliance is tested and listed by OMNI-Test Labs, Inc., of Beaverton, Oregon and is approved for Canada and USA to ANSI Z21.88-2002/CSA 2.33-2002, Vented Gas Fireplace Heaters, and applicable sections of UL307b...