We have more and more customers that have made plans along with our sky light windows to install a wood burner or stove. We think the two go hand in hand and can make for a feature full home. Some of our customer were concerned about losing the heat produced via using briquettes and that heat escaping through the roof windows. However, we hare reassured our customers that the quality of our windows have been tested and are at an industry high standard for the least amount of heat loss via our windows. Granted it is more than a well-insulated roof, but you have the added benefits of seeing the night sky.