Focusing on reducing humidity is actually how we got air conditioning
in the first place. In 1902, an engineer named Willis Carrier
installed an "apparatus for treating air" at a printing company in
Brooklyn that was having problems with magazine pages wrinkling in the
summer heat. The machine sent air through coils filled with cold
water, which removed humidity from the air and cooled the room. It
wasn't until 1922 that the Carrier Air Conditioning Company of America introduced the first practical centrifugal refrigeration compressor
that would become the foundation for modern air conditioners.

https://www.vox.com/climate/358898/best-thermostat-setting-save-energy-money-ac

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On Fri, 05 Jul 2024 06:11:33 -0500
JAB <[email protected]d> wrote:

Focusing on reducing humidity is actually how we got air conditioning
in the first place. In 1902, an engineer named Willis Carrier
installed an "apparatus for treating air" at a printing company in
Brooklyn that was having problems with magazine pages wrinkling in the
summer heat. The machine sent air through coils filled with cold
water, which removed humidity from the air and cooled the room. It
wasn't until 1922 that the Carrier Air Conditioning Company of America introduced the first practical centrifugal refrigeration compressor
that would become the foundation for modern air conditioners.

https://www.vox.com/climate/358898/best-thermostat-setting-save-energy-money-ac

I live in the UK; it's now possible to have air-conditioning in some of
our cars! (but, as we're British, we rarely use them). Looks like AC is
being sneaked into some homes as air-source heat pumps.

--
Bah, and indeed Humbug.

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On Fri, 5 Jul 2024 12:30:13 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

UK; air-conditioning in some of our cars!

In 1980s, AC was installed in most US vehicles.

AC is being sneaked into some homes
as air-source heat pumps.

Most efficient way currently. I've been using one for several years
now, mostly for AC. In Winter months, I use it if temps are above 32F
(0C)

"The Department of Energy says that heat pumps use up to 65 percent
less electricity than old fashioned furnaces or baseboard heaters. "

Footnote - The above is true if not living in a cold environment, like
below 32F (0C).

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On Fri, 5 Jul 2024 12:30:13 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

UK; .... air-source heat pumps.

I don't know which fuel(s) are used to heat homes/apartments/etc
there, nor if district heating is used.

But in NYC
The Next Heat Pump Frontier? NYC Apartment Windows

New heat pumps easily fit over window sills, meaning they could
replace clunky apartment air-conditioning units. https://www.wired.com/story/the-next-heat-pump-frontier-nyc-apartment-windows/

A bit overpriced, imho, but window-sill heat pump is a new way of
doing it for apartment dwellers.

I've bean counted the cost of different fuels (electric, propane,
oil), and switch from electric to propane when temps get below 0C.

I installed a 24,000 BTU Mini-Split some six years ago, which is nice
for AC/Heat.

YMMV....but different geo-locations require different solutions,
depending upon energy cost, equipment cost, and climate.

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On Fri, 05 Jul 2024 20:51:40 -0500
JAB <[email protected]d> wrote:

On Fri, 5 Jul 2024 12:30:13 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

UK; .... air-source heat pumps.

I don't know which fuel(s) are used to heat homes/apartments/etc
there, nor if district heating is used.

No; the current system(s) are piped gas, (or LPG tanks if too far away from mains pipes) or mains electric; even in close-packed cities there's no
district heating AFAIA. ASHP are the 'Way Forward', to go with
(electric) Solar Panels.

YMMV....but different geo-locations require different solutions,
depending upon energy cost, equipment cost, and climate.

Well, that was kind of my point; we don't often need aircon in the UK.

--
Bah, and indeed Humbug.

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On Fri, 5 Jul 2024, JAB wrote:

On Fri, 5 Jul 2024 12:30:13 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

UK; .... air-source heat pumps.

I don't know which fuel(s) are used to heat homes/apartments/etc
there, nor if district heating is used.

But in NYC
The Next Heat Pump Frontier? NYC Apartment Windows

New heat pumps easily fit over window sills, meaning they could
replace clunky apartment air-conditioning units. https://www.wired.com/story/the-next-heat-pump-frontier-nyc-apartment-windows/

A bit overpriced, imho, but window-sill heat pump is a new way of
doing it for apartment dwellers.

I've bean counted the cost of different fuels (electric, propane,
oil), and switch from electric to propane when temps get below 0C.

I installed a 24,000 BTU Mini-Split some six years ago, which is nice
for AC/Heat.

YMMV....but different geo-locations require different solutions,
depending upon energy cost, equipment cost, and climate.

I use a 120W tower fan, with built in swamp cooler. At full speed it
lowers the air temperature around me with 4-5 degrees C, taking the
temperature in my apartment down from 30 to a nice 25 on a hot summer day!
=)

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On Sat, 6 Jul 2024 11:32:07 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

Well, that was kind of my point;
we don't often need aircon in the UK.

"We" have not been conditioned...over in US on say a nice 25C (77F)
day, they all drive around with their windows rolled up with AC on.

If they were having a picnic, they would say it's a nice day, but
yet, they drive their vehicles with the AC on.

=====================
Operant conditioning, also called instrumental conditioning, is a
learning process where voluntary behaviors are modified by association
with the addition (or removal) of reward or aversive stimuli.

Operant conditioning originated in the work of Edward Thorndike, whose
law of effect theorised that behaviors arise as a result of whether
their consequences are satisfying or discomforting. In the 20th
century, operant conditioning was studied by behavioral psychologists,
who believed that much, if not all, of mind and behaviour can be
explained as a result of environmental conditioning. Reinforcements
are environmental stimuli that increase behaviors, whereas punishments
are stimuli that decrease behaviors. Both kinds of stimuli can be
further categorised into positive and negative stimuli, which
respectively involve the addition or removal of environmental stimuli. https://en.wikipedia.org/wiki/Operant_conditioning

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On Sat, 6 Jul 2024 13:31:36 +0200, D <[email protected]> wrote:

I use a 120W tower fan, with built in swamp cooler.

Living in Colorado (where night temps are low in summer months),
people leave their windows open at night, and close them before they
leave in the morning.

temperature...from 30 to a nice 25 on a hot summer day!

30C is OK around here with the wind blowing, but when the apparent
temp reaches 45C, that is hot...a person can perceive that heat. I
was experiencing that recently for several hours.

In Watertown, NY, when temp hits 32C, and higher, this is a heat wave
for them.

It takes about a week or so to acclimatize to a given location.

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On Sat, 06 Jul 2024 11:20:55 -0500
JAB <[email protected]d> wrote:

On Sat, 6 Jul 2024 13:31:36 +0200, D <[email protected]> wrote:

I use a 120W tower fan, with built in swamp cooler.

Living in Colorado (where night temps are low in summer months),
people leave their windows open at night, and close them before they
leave in the morning.

temperature...from 30 to a nice 25 on a hot summer day!

30C is OK around here with the wind blowing, but when the apparent
temp reaches 45C, that is hot...a person can perceive that heat. I
was experiencing that recently for several hours.

In Watertown, NY, when temp hits 32C, and higher, this is a heat wave
for them.

It takes about a week or so to acclimatize to a given location.

I wouldn't mind being somewhere warm for a bit; but sleep-deprivation due
to high over-night temperatures would make me into a zombie.
Also, I'm particularly noise-sensitive at night, so a droning conditioner
or buzzing fan would also cause trouble for me.
Enough about me.


--
Bah, and indeed Humbug.

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On Sat, 6 Jul 2024 22:02:04 +0100, "Kerr-Mudd, John" <[email protected]>
wrote:

I wouldn't mind being somewhere warm for a bit

In previous years, I have traveled extensively in US.

In summer months, above the mid latitudes are more suitable
PIC
https://www.spaceweatherlive.com/images/help/lowmidhigh/EN_World.jpg

But, temperatures vary depending on altitude, geography, and
topography.

I've lived in Frankfurt am Main for six months, and had no issue there
with temperatures.

However, I do like sunny days and low humidity found in states like
Montana, Colorado, and eastern Oregon/Washington.

a droning conditioner

A mini-split setup in a different room from a bedroom is quiet in AC
operation. In heating mode, its best to research units available; if
unit has to use defrost mode, extra noise is possible.

buzzing fan

ROWENTA TURBO SILENCE TABLE FAN is quiet on low speed

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