Larry,

That keel idea is a great one. He could collect solar heat with the
mast and pump it to the keel for storage. And of course this would make
Scotty very happy cause the keel would have to be covered with foam for
insulation.

Regards, Ron

I don't recieve e-mail at this address because of spam. E-mail me
at crtsrATmsnDOTcom.

Dear Rod,

I hear you. I absolutely agree on everything you said. The battery bank would be
15kWh capable AGM (for 100%50% discharge). There will be a 12V battery with
24V12V crosscharger.

I have found 90% efficient 5kW inverters in Taiwan for approx $600. M

Rod McInnis wrote:

"misia" wrote in message
ail.from.there...
On my new boat I will have a powerfull 24VDC battery bank charged by a
diesel generator and auxiliary sources.

How powerful? Are you talking about a thousand amp-hours, or a hundred
thousand amp-hours? I can't imagin the cost, hassle and space rewquired for
the latter, but it is what you would need to provide what you are asking
about.

I did a bit of search but couldn't find much- are there any 24 VDC
appliances such as cooker/oven, fridge, AC and water heater you could
recommend?

In general, it is impracticle to use battery power for creating heat, i.e.,
stoves, ovens, water heaters, etc. It simply takes too much power for too
long to make it practical to store. Nevermind the voltage, it is more of an
issue of watt-hours.

I know I can run standard items through power inverter but I would
prefer not to do it for the sake of reliability/efficiency/cost.

Using the inverter, you have the reliability and cost of just one thing: the
inverter. After that, you can use very reliable and low cost 110 volt AC
appliances. To find 24 volt anything is going to be expensive, and the
bottom line is that DC motors are just not as reliable as AC motors, and
high current/low voltage is harder to work with (and thus less reliable)
than higher voltage/lower current.

I want
to go totally electric (no gas)

Then run your generator when you need the power, and use the batteries for
the small stuff.

A reasonable battery bank can run your lights, refrigerator, and through an
inverter you can run small appliances (such as a blender or short use of the
microwave), TV, stereo, computers, etc.

When looking for 24 volt equipment, take a look at commercial and "mega
yacht" sources. Lights shouldn't be a problem, but you may find that
electronics are scarce and very expensive. Since your battery bank is most
likely made up of a number of batteries in series, you could tap off a 12
volt line and have both a 12 volt and 24 volt system. Use the 24 volts for
the higher wattage stuff, such as the inverter, windlass and lights. Use
the 12 volts for the electronics, such as depth finders, VHF, etc.

Run the stove, water heater, and air conditioning off the generator.

Rod McInnis

"misia" wrote in message
ail.from.there...


I hear you. I absolutely agree on everything you said. The battery bank
would be
15kWh capable AGM (for 100%50% discharge).

So, that would be like 10 of the 8D size batteries?

I hope this is a big boat you are putting these on. That is a lot of space,
not to mention the ~1500 pounds.

Rod McInnis

We use both 12 and 24 systems. They higher the required amperage the better
it is to use a higher voltage. We run winches, fridge, and autopilot hyd
motor with 24 volt. All else is 12v.
We use two 12 volt banks and one very large 24 volt bank. Charging is from
both 12 and 24v HO alternators but are getting ready to add additional
charging systems.

Gas for cooking, diesel for heating. Hate to run a $20k motor to heat the
cabin.

Good luck,

B
"misia" wrote in message
ail.from.there...
On my new boat I will have a powerfull 24VDC battery bank charged by a
diesel generator and auxiliary sources.

I did a bit of search but couldn't find much- are there any 24 VDC
appliances such as cooker/oven, fridge, AC and water heater you could
recommend?

I know I can run standard items through power inverter but I would
prefer not to do it for the sake of reliability/efficiency/cost. I want
to go totally electric (no gas)

Regards Mi

If y'all would just hang on for the next design generation of auto
electronics, you might could use the 42 volt electrics.....

Brian Whatcott Altus OK

On Wed, 14 Jan 2004 17:12:08 -0500, "Bryan B"
wrote:

We use both 12 and 24 systems. They higher the required amperage the better
it is to use a higher voltage. We run winches, fridge, and autopilot hyd
motor with 24 volt. All else is 12v.
We use two 12 volt banks and one very large 24 volt bank. Charging is from
both 12 and 24v HO alternators but are getting ready to add additional
charging systems.

Gas for cooking, diesel for heating. Hate to run a $20k motor to heat the
cabin.

Good luck,

B
"misia" wrote in message
mail.from.there...
On my new boat I will have a powerfull 24VDC battery bank charged by a
diesel generator and auxiliary sources.

I did a bit of search but couldn't find much- are there any 24 VDC
appliances such as cooker/oven, fridge, AC and water heater you could
recommend?

I know I can run standard items through power inverter but I would
prefer not to do it for the sake of reliability/efficiency/cost. I want
to go totally electric (no gas)

Regards Mi

"Bryan B" wrote in message
...
We use both 12 and 24 systems.


Just out of curiosity, who is "we" ?

Rod

hi
stuff made for trucks here in the uk are 24v..


"misia" wrote in message
ail.from.there...
On my new boat I will have a powerfull 24VDC battery bank charged by a
diesel generator and auxiliary sources.

I did a bit of search but couldn't find much- are there any 24 VDC
appliances such as cooker/oven, fridge, AC and water heater you could
recommend?

I know I can run standard items through power inverter but I would
prefer not to do it for the sake of reliability/efficiency/cost. I want
to go totally electric (no gas)

Regards Mi