At 08:40 AM 12/31/1999 EST, you wrote:
  I suggested
>that he heat the water by running a type K flexible copper tubing around the
>around the exhaust manifold and muffler, have a high and low inlet on the
>water tank and let the water heat by convection.  Free heat from the muffler
>no drain on the electrical system.

Yes, Yes, and if you wrapped it all with header insulating cloth, you would
increase heat transfer to the water and raise exhaust gas temp for a bit
more exhaust velocity ie: better combustion chamber fill and flow. Absolute
reclaim of otherwise wasted energy. Set up the hot water storage tank with
hi-tech insulation and provision for heat maintenance by a votive candle
underneath. A five gallon tank raised to 160f degrees could be held
overnight by a wax flame to a nice warm shower in the morning.

Any home brewers supply will have copper coils with hose fittings designed
for cooling the wert quickly before adding the yeast. They are design to be
used with common plastic buckets. These could be hooked into the
WasserBoxer coolant system to circulate hot coolant through the tubes
suspended in the bucket of water. If you put a tee in the system hose
running from the motor to the radiator and one further up stream in the
same line with a smaller hose, you would get a differential pressure flow
and no pump would be required. Slice into the rear seat heater?? Could be
easy squeezy.

Need to pull a 10 mile hot summer mountain pass with a full load?? Stop at
the bottom of the grade. Fill the water tank with ice cold glacier water.
Be extra cool.

T.P. Stephens aka Doktor Tim
Surveyor, Mechanic, Poet, Philosopher
San Juan Island, WA