Eric is the creator of At Home in the Future and has been a passionate fan of the future since he was seven. He's a web developer by trade, and serves as the Director of Communication and Technology for a large church in Nashville, TN (where he and his family are building a high tech home in the woods).
Boilers work by transferring heat from combustion to the water. In a traditional boiler, hot flue gas is let into a tube filled with water, using a draft.