"Rod McInnis" wrote in message
...

"Larry W4CSC" wrote in message
...


I've never figured out why boats in cold climates waste all this
energy going out the exhaust. It's SO easy to make a cast iron heat
exchanger in a dry stack, right next to...or even right IN the
exhaust
manifold that will just roast your ears with free heat.

the old Volkswagon Beetles used a heat exchanger off the exhaust
manifolds
to heat the car! It was actually pretty nice on cold mornings, as the
heater worked almost instantly after starting the car.

Are you insane? Suffering from Amnesia? We had one of those Beetles in
Minnesota from 1973 until 1985. My wife used to wonder why the other
people in the grocery store weren't wearing snowmobile suits. We
learned to drive one handed so we could scrape the inside of the
windshield with the other. Do you realize how long it takes to heat a
piece of cast iron and the sheet metal floorpan duct when it starts out
at zero, and the heat is coming from 750cc of motor (there were two, so
each only got half the exhaust)

Sheeesh.

del cecchi