I saw this one on one of the topics on the TWO site. The issue was how hot
is your bedroom at the moment. From what I have seen most of us are enduring
around 28C to 33C. Thats miles too hot for a decent nights sleep.
This bloke here seems to have got round the problem. I haven't tried
this yet, but I am sure there are some engineers on this ng.
Take a look anyway:-)

http://www.eng.uwaterloo.ca/~gmilburn/ac/

--
************************************************** **********
Gavin Staples.

Horseheath. Cambridge, UK. 93m ASL.
House to Let. For details see on my website.
www.gavinstaples.com
site regularly updated

"Silence is one of the hardest arguments to refute". ~Josh Billings

All outgoing emails are checked for viruses by Norton Internet Security
2005.
************************************************** **********

On Thu, 23 Jun 2005 14:39:59 +0100, "Gavin Staples"
wrote:


I saw this one on one of the topics on the TWO site. The issue was how hot
is your bedroom at the moment. From what I have seen most of us are enduring
around 28C to 33C. Thats miles too hot for a decent nights sleep.
This bloke here seems to have got round the problem. I haven't tried
this yet, but I am sure there are some engineers on this ng.
Take a look anyway:-)

http://www.eng.uwaterloo.ca/~gmilburn/ac/

OK if you have a large supply of ice and are happy to have a dustbin in your
bedroom.

Don't waste money on evaporative coolers that use a stream of air across water.
This will cool the air but raise the humidity to produce an unpleasant
clamminess and actually seem IMHO, to make you feel more uncomfortable.

Make use of nature's own air conditioning system and just ensure you have moving
air across your body, I have found this system to be highly efficient. A shower
before going to bed helps to remove that sweaty, sticky feeling.

Martin

On Thu, 23 Jun 2005 15:12:26 +0100, JPG wrote:

On Thu, 23 Jun 2005 14:39:59 +0100, "Gavin Staples"
wrote:

http://www.eng.uwaterloo.ca/~gmilburn/ac/

OK if you have a large supply of ice and are happy to have a dustbin in your
bedroom.

Don't waste money on evaporative coolers that use a stream of air across water.
This will cool the air but raise the humidity to produce an unpleasant
clamminess and actually seem IMHO, to make you feel more uncomfortable.

Make use of nature's own air conditioning system and just ensure you have moving
air across your body, I have found this system to be highly efficient. A shower
before going to bed helps to remove that sweaty, sticky feeling.

I bought a small (5500 BTU) inexpensive portable A/C (not evaporative)
a few years ago and have it in the dining part of my lounge-diner. The
outlet vanes can direct the airflow in various directions and air is
expelled at around 16 deg C when outside temperatures are around 27
like today. It vents into a handy airbrick aperture in my dining room
wall and obviously, I keep all the room windows and doors shut.

It was designed to cool a small room like my dining room alone, and
not the lounge-diner; nevertheless, by running it 24 hours a day, it
keeps the room temperature between 2 and 3 degrees C cooler than the
outside afternoon temperature and relative humidity is always 45% or
less. I have a large fan as well but wouldn't be without the A/C now.
I solve the bedroom problem by having a North facing room , opening
all upstairs windows in mid evening, going to bed late then shutting
all windows until mid-day. The large (quiet) fan is an option if
things are still too hot in the bedroom.

I think you may need a 9000 BTU unit in London, to make what works
here work there.

--
Dave
Fareham

Felly sgrifennodd JPG :
Don't waste money on evaporative coolers that use a stream of air across water.
This will cool the air but raise the humidity to produce an unpleasant
clamminess and actually seem IMHO, to make you feel more uncomfortable.

Or just move up into the mountains! Our warmest midnight temperature so far
this month (indoors, measured just outside the bedroom) is 21.0 degrees
(00:00 on 20/6).

That's still too warm for me

Adrian (12 miles ESE Aberystwyth, 260m/860ft asl)
--
Adrian Shaw ais@
Adran Cyfrifiadureg, Prifysgol Cymru, aber.
Aberystwyth, Ceredigion, Cymru ac.
http://users.aber.ac.uk/ais uk

"Gavin Staples" wrote in message
...

I saw this one on one of the topics on the TWO site. The issue was how hot
is your bedroom at the moment. From what I have seen most of us are
enduring
around 28C to 33C. Thats miles too hot for a decent nights sleep.

good grief, here in Civilised Cumbria we are well below that :-)



Jim Webster

Agreed about the evaporative coolers - just use the fan with no water - or
pour the water on yourself and stand in front of it!
I have a very hot bedroom (well, not according to my wife, on reflection
;-0 ) and have a large diameter three speed ceiling fan with a built in
light where the old ceiling rose was. ( ~£25 B&Q) This is very effective in
circulating the air and providing a pleasant draught.

Dave
"Adrian D. Shaw" wrote in message
...
Felly sgrifennodd JPG :
Don't waste money on evaporative coolers that use a stream of air across
water.
This will cool the air but raise the humidity to produce an unpleasant
clamminess and actually seem IMHO, to make you feel more uncomfortable.

Or just move up into the mountains! Our warmest midnight temperature so
far
this month (indoors, measured just outside the bedroom) is 21.0 degrees
(00:00 on 20/6).

That's still too warm for me

Adrian (12 miles ESE Aberystwyth, 260m/860ft asl)
--
Adrian Shaw ais@
Adran Cyfrifiadureg, Prifysgol Cymru, aber.
Aberystwyth, Ceredigion, Cymru ac.
http://users.aber.ac.uk/ais uk

Nice to see someone enjoying themselves by building something though - not
much of that going on these days! (I won't bore you with my failed attempt
to make a mechanical cricket game when I was 11!!)

Dave
"JPG" wrote in message
...
On Thu, 23 Jun 2005 14:39:59 +0100, "Gavin Staples"
wrote:


I saw this one on one of the topics on the TWO site. The issue was how
hot
is your bedroom at the moment. From what I have seen most of us are
enduring
around 28C to 33C. Thats miles too hot for a decent nights sleep.
This bloke here seems to have got round the problem. I haven't tried
this yet, but I am sure there are some engineers on this ng.
Take a look anyway:-)

http://www.eng.uwaterloo.ca/~gmilburn/ac/

OK if you have a large supply of ice and are happy to have a dustbin in
your
bedroom.

Don't waste money on evaporative coolers that use a stream of air across
water.
This will cool the air but raise the humidity to produce an unpleasant
clamminess and actually seem IMHO, to make you feel more uncomfortable.

Make use of nature's own air conditioning system and just ensure you have
moving
air across your body, I have found this system to be highly efficient. A
shower
before going to bed helps to remove that sweaty, sticky feeling.

Martin

"Dave Ludlow" wrote in message
...
On Thu, 23 Jun 2005 15:12:26 +0100, JPG wrote:

snip
I bought a small (5500 BTU) inexpensive portable A/C (not evaporative)
a few years ago and have it in the dining part of my lounge-diner. The
outlet vanes can direct the airflow in various directions and air is
expelled at around 16 deg C when outside temperatures are around 27
like today. It vents into a handy airbrick aperture in my dining room
wall and obviously, I keep all the room windows and doors shut.

It was designed to cool a small room like my dining room alone, and
not the lounge-diner; nevertheless, by running it 24 hours a day, it
keeps the room temperature between 2 and 3 degrees C cooler than the
outside afternoon temperature and relative humidity is always 45% or
less. I have a large fan as well but wouldn't be without the A/C now.
I solve the bedroom problem by having a North facing room , opening
all upstairs windows in mid evening, going to bed late then shutting
all windows until mid-day. The large (quiet) fan is an option if
things are still too hot in the bedroom.

I think you may need a 9000 BTU unit in London, to make what works
here work there.

--
Dave
Fareham

Just happened on the calculation to work out the size of A/C unit needed.
Size of room in cu metres x 185 = btu / hour (standard room)
Conservatories - x 222

David B