Comment Re:A better heater (Score 1) 235
VW Beetles, Porsche 356s, Porsche 911s, Porsche 914s, Karman Ghias, and most single engine aircraft use exhaust heat for cabin heating. It is a crappy system at best. There is the ever-present danger of exhaust leaks along with the wide variation in heat output. Any old time Beetle driver can tell you about roasting going uphill and freezing downhill.