Re: Best space heater for winter?

On Tue, 27 Sep 2005 09:51:30 -0500, William Boyd <williamboyd@xxxxxxxxxxxx>
wrote:

>Bob Hatch wrote:
>
>> "William Boyd" <williamboyd@xxxxxxxxxxxx> wrote in message
>> news:3pru8kFbtrcoU1@xxxxxxxxxxxxxx
>>
>>>Neon John wrote:
>>>
>>>
>>>>The two are totally unrelated. Wind chill is an attempt to quantify
>>>>the effect wind has on the perception of temperature by humans. It
>>>>does not take humidity into account. The wind chill would be the
>>>>same whether the RH was 0 or 100%. The sling pyschrometer or swamp
>>>>cooler have slightly different dependencies on humidity.
>>>>
>>>>A decent idea when conceived, wind chill has turned into little more
>>>>than something the TV weather idiots can scream about. Being a
>>>>subjective scale, it has little to do with science.
>>>>
>>>>John
>>>>
>>>>On Mon, 26 Sep 2005 21:34:34 GMT, Chris Bryant <bounces@xxxxxxxxxxxx>
>>>>wrote:
>>>>
>>>>
>>>>
>>>>>On Mon, 26 Sep 2005 13:56:23 -0500, Lone Haranguer wrote:
>>>>>
>>>>>
>>>>>
>>>>>>Herbert wrote:
>>>>>>
>>>>>>
>>>>>>>Wind velocity only acts as accelerant; any type of mass can only
>>>>>>>cool to actual temperature.
>>>>>>
>>>>>>This will be news to the wet bulb thermometer and those using
>>>>>>evaporative coolers.
>>>>>>LZ
>>>>>
>>>>>hah- you beat me to it.
>>>>
>>>>---
>>>>John De Armond
>>>>See my website for my current email address
>>>>http://www.johngsbbq.com
>>>>Cleveland, Occupied TN
>>>
>>>John!, John!, JOHN you are over your head on this one.
>>
>>
>> No he's not.
>>
>> http://www.nws.noaa.gov/om/windchill/index.shtml
>>
>> From:
>> http://www.nws.noaa.gov/om/windchill/windchillglossary.shtml
>> 13. Does humidity or being near a large water body affect on wind chill?
>>
>> When we tested the new Wind Chill Temperature Index (WCTI), our researchers
>> applied the new index to 12 test subjects. The results of the tests showed
>> that relative humidity was an insignificant weather parameter, less than one
>> degree at worst. To simplify the calculation, relative humidity was left out
>> of the formula.
>>
>> We did research a wet wind chill or blowing water spray. This research was
>> to simulate a person near a body of water or a mariner. These findings are
>> being finalized and may be incorporated for the winter season 2003-2004.
>>
>>
>They tested seeding the clouds too, that proved flawed as well. If
>humidity does not have any thing to do with wind chill why cant you
>cool dry air? Why do they use swamp coolers in dry areas?
>
>--
>BILL P.
>Just Dog
> &
> ME

To be absolutely accurate, relative humidity Does affect wind chill.

But generally, most people who are concerned about wind chill factor only
care when the numbers are the numbers are below 20F, and mostly
concerned when the number is minus anything F.

At these temperatures, the difference between 100% Rh and 0% Rh is
almost nil as far as perceived (human skin) temperature feels.

zero
.

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