Re: [Phys-l] cooling hints

[Bernard Cleyet <bernardcleyet@redshift.com>]

On 2011, Aug 25, , at 10:16, brian whatcott wrote:

> What a good note!
>
> Way short on attitude: and long on analysis
>
> Brian W

No analysis , all attitude:


Move to balmy Salinas.


No snow.  (well occasionally one of two days some  years)


With our AC  except two or three weeks always below 25 C in a partially insulated buildings.

bc

AND:


On 2011, Aug 25, , at 10:33, Dr. Richard Tarara wrote:

> I would add that we certainly don't want to foster a message that could 
> easily be misinterpreted and produce those unintended consequences similar 
> to those Michael has documented.  For example, how many people might take 
> the 'turn it off' too litterally and upon leaving for their three month stay 
> in Florida over the winter, simply shut off their furnace.  That certainly 
> saves energy, but when they return to a flooded house with multiple busted 
> pipes and pay for the clean up, repair, AND the enormous water bills (had 
> our cleaning person leave a toilet running one Xmas vacation and ran up a 
> $100 water bill--normally $25!).  Down to 50 Fahrenheit is OK, off doesn't 
> work in my neck of the woods!
>
> Rick





> On 8/24/2011 12:59 PM, Michael Edmiston wrote:
> > I believe the answer to this is... it depends.


> > [1] It depends on how long will you leave it off.




> > hutdown period is less than 24 hours.
> >
> > [2] It depends on the humidity.




> >  A/C off and open the windows at night.  So they now run the
> > A/C all the time unless they are going to be away from home for a few days.
> >
> > [3] It depends on whether you have peak metering.
> >
> > The example given in [2] was for a household that has the same electricity
> > rate 24 hours a day.  At my church we have a peak/off-peak metering system.
> > If we turn the A/C off at night (or to a higher temperature at night), it
> > runs less during the off-peak time when the electricity is cheaper, then it
> > has to catch up just before people arrive in the morning, and this catch-up
> > occurs at the peak rate.  It cost more money to do a "setback" at night than
> > just letting it stay the same temperature all night long.
> >
> > [4] It depends on whether you have equipment that suffers from humidity and
> > temperature changes.

> > We are now running the science building A/C 24/7, and it is on a
> > peak/off-peak meter.
> >
> > [5] At my house I run the A/C 24/7 even when I am away for a few days
> > because I have an expensive 7-foot grand piano that can take a beating from
> > humidity changes.  However, I don't feel too bad about this because my



> > Michael D. Edmiston, Ph.D.
> > Professor of Chemistry and Physics
> > Chair, Division of Natural and Applied Sciences
> > Bluffton University
> > 1 University Drive
> > Bluffton, OH 45817