[PUP] PPM in general - what should it be ?

[John Marshall]

Bill,
	We cook with propane, and rarely fire up the electric oven, although  
we do microwave a bit.
	
	In warmish weather, our major current drain is refrigeration. In  
winter, in the PNW with short days and heating needs, lights and  
heating dominate.

	House bank is about 1024 amp/hours at 24v (2048 at 12v). More would  
be nice... and if I'm hurting for juice (or find I'm on the low side  
at bedtime), then I parallel in 4 additional 8D AGM's that are  
normally isolated on the bow and stern thrusters. A dozen 8D AGM's  
work nicely. Don't need those extra batteries on thrusters at anchor.  
My reserve house bank.

	From April to November, our regiment is to run Genset for 3 hours in  
the morning, overlapping that with clothes washing and watermaking and  
turning on two auxiliary chargers to double my charge rate to >200  
amps at 24v.

	If its a nice evening and we're BBQ'ing (propane) and sitting outside  
until bedtime, we don't have to run in evening. But if we're inside  
and watching plasma TV (power suck) and using lots of lighting and  
other entertainment gizmos, then we'll run for 2 or 3 hours in early  
evening (more watermaking). So 3 to 6 hours a day on Genset depending  
on weather and what we're doing.

	In winter cold temps, given I haven't installed diesel heat yet, we  
run the genset a lot for electric heat. Once I get diesel heat  
installed, I'd expect winter run time to drop back to the 6 or 7 hours  
a day range. Lots of lighting and we're inside burning power a lot  
more due to cold and darkness.

Hope this helps... John



On Dec 7, 2008, at 11:55 AM, bill wrote:

> John Marshall,
>
> In a recent post to this list you estimated an extra daily hour of  
> genset run
> time due to sub zero appliances.  Also a house bank of 8 8D's and a  
> charge
> rate of 220 amps per hour @ 24V.
>
> May I ask what your normal, at anchor charging regimen, is?  And  
> isn't your
> batttery bank on the small side for a boat of your displacement and  
> inherent
> hotel needs?
>
> What do you use for cooking?
>
> thanks,
>
> Bill
> _______________________________________________
> http://lists.samurai.com/mailman/listinfo/passagemaking-under-power
>
> To unsubscribe send email to
> passagemaking-under-power-request at lists.samurai.com with the word
> UNSUBSCRIBE and nothing else in the subject or body of the message.
>
> Passagemaking Under Power and PUP are trademarks of Water World  
> Productions, formerly known as Trawler World Productions.