On the subject of these hot days.
We have got a couple of ceiling fans and a portable fan. Do they actually
cool the whole room down, or just the bit in the air flow?
The reason I am asking is, when the fans are on, would it be better to keep
the windows shut, do they let more hot air in, or open the windows in the
hope of catching a breeze.
Yes, we have noticed more butterflies than usual this year, and anyone
interested in weather statistics, look at
uk.sci.weather, pick up some good info there.
If the windows are shut, they will slowly warm the room up (even higher!)
according to their motor rating in Watts although, to start with, if you sit
in front of them, the forced air will make you feel cooler. You cannot
escape the fact that power is being converted from electrical energy into
If you are in the room for a short time, of course, you may find the fan
If the windows are open, it's a different matter, depending on the relative
temperature inside and out and whether the fan stimulates circulation
between the two.
(anti-spam is as easy as 1-2-3 - not)
Fans do not cool a room down. What they DO do is increase the rate of
airflow across damp perspiring objects thus increasing the rate of
evaporation and hence a lowering of the temperature of that object.
Simply putting a high speed fan into a sealed room will increase the rooms
temperature due to the inefficiencies of the fan motor.
Have a spray bottle of iced water and a fan .
Preferably naked,spray water towards fan and wait for it to return across
your body very refreshing and as it evapourates you cool down.
Do it gradually to prevent shock,actually this bit is added to stop the "I
know better brigade " butting in as they do
In the really hot (tropical) countries I have been to, if air con
is not fitted the norm is ceiling fan(s) plus at the very least
an unglazed opening at the top of the room, quite possibly two at
opposite ends to get a cross-flow of air. They may glass the
lower level windows to keep out mozzies, or fit fine mesh screens
instead. They never totally seal rooms unless air con is fitted.
I have seen these arrangements in many places. I think the people
who live with this heat or worse all the time probably know best.
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