I didn’t read the whole thread so maybe someone already has this.
In digging around for s fuel
problem on my Westerbeke
gen I discovered that there is some information in their owner manual that indicates using the hot water from the engine to heat water in a water tank with its own heat exchanger. Then the engine water is either plumbed back into the exhaust
or simply dumped overboard
if the unit has stack exhaust
I had sketched out an idea for this very thing. Since it was another rainy and cold day and I was waiting for parts
, I searched for various heat exchangers and hot water systems. I couldn’t find a kit but there are parts
available so it wouldn’t be too hard to put together a much larger hot water supply. The hardest part is combining the heat exchanger with a water tank. Most boat
don’t have an abundance of unused space but you can place a tank in a corner somewhere and easily double the 6-8 gallons most electric
I do precision TIG welding so fabricating a tank with an intergalactic heat exchanger would not be out of the question. It’s possible to put a system together with a separate tank and heat exchanger but it takes more room.
Additionally I’m looking at a modification to use something like a radiator with a fan to do the same thing for heating
in the winter. The cost of electric
power is pretty high and I don’t really feel safe using propane
on a gasoline boat
. Maybe it’s a non issue as I see the house boats down the line from me all use propane heat in the winter with gas motors. There just may not be much evaporation of the gas in the winter to be an issue especially if you run the bilge
I asked a Westerbeke
tech guy about this and the lifespan of the gen. He said if the oil is monitored and changed regularly and you don’t overheat the motors they will last almost indefinitely, more so the diesel
I wouldn’t want to run 24/7 with these gens but turning them on for the evening instead of electric would not be out of the question. I worked at a very large stationary engine builder
and these motors typically ran 24/7 for years with only automatic oil changers and automatic coolant
Something to think about.