Re: Best space heater for winter?

On Tue, 27 Sep 2005 15:09:20 GMT, zeromedic@xxxxxx (zero) wrote:


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

To be absolutely accurate, humidity has no effect on Wind Chill
(notice the capital letters, as Wind Chill is the proper name given to
the model of perceived cold developed by the NWS) as was noted in an
NWS quote earlier in this thread.
>
>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.

Based on notes in my journal that I've kept over the last several
years because I'm interested in this topic, humidity DOES indeed have
a large effect on perceived cold - but only under still conditions. I
can be in mid-20s weather in my shirt sleeves and be comfortable when
the humidity is high, such as immediately after fresh snow. At the
same temperature and low humidity I need a rather hefty jacket to be
comfortable.

Once the air starts moving, humidity has little to no effect on my
comfort. The NWS has noticed the same thing.

John
---
John De Armond
See my website for my current email address
http://www.johngsbbq.com
Cleveland, Occupied TN
.

Relevant Pages

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