CNC Music Factory designed a lounge chair called 'Radiator Lounge' and made out of an old radiator. We already showcased a chair made from a recycled radiator (here), or a bike, a sheep and even a coffee table. Now we found the lounge chair from a radiator. This lounge chair won the jury award & people's choice award at the Seattle Design Jam.
As the chair, I don't know if it is very comfortable, but one thing we can be sure of is that nobody will steal it :)