The Natural Blaze burner system produces instant, dancing yellow flames and a glowing ember bed, providing immediate warmth and ambience for just about any space. Offering 38,000 Btu, the Natural Blaze is dual rated for either vent-free or vented applications (with vented installation requiring the purchase of a damper clamp) and is double sided for use in see-through fireboxes. With millivolt control, a piezo igniter, and Canadian Standards Association design certification, the 27-inch natural-gas or propane logs of the Natural Blaze are the perfect addition to any empty firebox. Contact: (800) 867-0454 or www.monessenhearth.com.