Ordered for a 6 year old BIS Panorama fireplace made by Security Chimneys. Our previous combustor was cracked from being exposed to wet wood - a word of advice, don't use wet wood! Steam is 212 degrees while the combustor is probably over 700 degrees, not a good combination. Anyway, we finally ordered this and it was delivered within a week very well packaged. Replacing the existing combustor was a simple drop-in operation, just like a cleaning. The fireplace works like brand new now.