D-40 Insert by Mendota

The D-40 gas fireplace insert is one of the largest inserts on the market. It's designed to fit easily into large, traditional fireplaces. The D-40 offers infinite flame/heat adjustment from 40,000 to 6,500 BTUH. It has the warmth and magical beauty of a wood fire plus the important added advantages of operating with clean, convenient gas and providing the heat and high efficiencies of a certified ANSI/AGA wall furnace.