[MarinTeams] Fw: generator talk

[Bill Smith]

----- Original Message ----- 
From: <rosenbergfam at juno.com>
To: <hbco2 at sbcglobal.net>
Sent: Saturday, December 22, 2007 9:20 PM
Subject: Re: generator talk


> Sure Bill, move the discussion to the forum.  Sounds like the  HWA
> equipment uses vacuum tubes and was made in the 50's, and uses a lot of  
> juice for emergency equipment.   a 12v 12 amp Astron  takes 120 plus
> watts to run?
>   The common inverters that I have seen and are fairly cheap all are
> 12volt units.  For example,  Harbor Freight Tools in Vallejo sells  a
> 1200 watt continuous /3200peak watt inverter that puts out a modified
> sinewave for sensitive equipment for $89.99.  90% efficient.  They also
> sell a 9hp Robin powered generator rated at 4400 watts continuous with
> electric start(all the electric starts I've seen also can be started
> manually with the rope starter. The one with a 14 hour fuel tank sells
> for $600.  One regular 12v Costco battery selling for $50. is rated for
> about 50 amp- hours which means it would run the inverter putting out
> about 600 watts for about 1 hour.  You can juggle around the figures by
> better estimating the total wattage needed at 110v with the amp hour
> rating of a 12vbattery.
> So if you put it together, you have a battery ($50.) plus an
> inverter($90.) plus a transfer switch ($225) plus an electric/manual
> start,($600.) and you have a UPS emergency system new for about 1k.  You
> might also add a cheap small trickle charger to keep the batteries up and
> ready.
> 
> k