I just came back fro Europe and was absolutely amazed at the range of choices the consumer has. Wood stoves with heat exhangers that pipe hot air to different rooms, lots of automated air controls that reduce particulates and increase efficiency, and lots of stoves that also heat water for space heating. How come there are no such stoves on the US market? Several manufacturers I've spoken to say there is nothing in the EPA regulations or Method 28 that would preclude a stove that heats water becoming certified. Anyone have an opinion on this?