Look at this picture carefully, what you think is a cloud is actually fog rising off Lake Champlain, the water temp is about 40 and the air temp this morning was zero. The difference in temperatures causes the "steam" effect. What a spectacular time to be thinking about an energy efficient home! Here at Vermont Modular we build the most energy efficient home in Vermont. Insulation is only one part of creating the best energy efficient home. This dramatic photograph was taken on December 17 and technically it is still Autumn, winter has yet to begin. You really do need an Energy Efficient Home.