House cooling

[NoelWatson]

Now that we are experiencing the week of the year where temperatures are above 20 degrees, I thought I would look into cooling the kids bedrooms. If I take a washing up bowl, fill it with water, place it in freezer and cool to around -15degrees, take it out and place on floor in kids bedroom and blow a fan over it, will it make any difference whatsoever?

[dave_s13]

No. Will it chuff.

All you'll end up with is a damp patch on the floor when the kids knock the bowl over.

Mobile ac unit is an option but they can be noisey.

[NoelWatson]

dave_s13 said:

No. Will it chuff.

All you'll end up with is a damp patch on the floor when the kids knock the bowl over.

Mobile ac unit is an option but they can be noisey.

Was thinking about mobile a/c until but not sure how to get the hot air out through window without involving lots of tape.

[Simpo Two]

Water at -15C is hard to spill...

Technically it will cool the room but whether the effect is noticeable is another matter.

[Turbodiesel1690]

Fill the bowl with liquid nitrogen, that should do the trick

[spikeyhead]

errrm, open a window, you're not in the tropics.

[Bill]

spikeyhead said:

errrm, open a window, you're not in the tropics.

Close them during the day and open them at night.

[Vee]

My dad leaves the loft hatch open along with all room doors.
Seems to work

[dave_s13]

Bill said:

spikeyhead said:

errrm, open a window, you're not in the tropics.

Close them during the day and open them at night.

Whats the theory behind that then?

[Laurel Green]

dave_s13 said:

Whats the theory behind that then?

'Tis what they do in the tropics. Well, usually using shutters instead of curtains. Keeps the sun off the windows, thus reducing the heat inside.

ETA: Oops! I should read the thread properly before posting as, I thought the 'close them' pertained to curtains, which would make my above post to then make a modicum of sense.

Edited by Laurel Green on Saturday 22 May 18:23

[Deva Link]

Bill said:

spikeyhead said:

errrm, open a window, you're not in the tropics.

Close them during the day and open them at night.

...and close the curtains during the day.

[Condi]

My attic room gets terrible hot. The windows are open nearly 24/7. Luckily though I have windows on each side so can get a decent through draft. AC unit would be best, but they are expensive to buy and expensive to run.

[Dogwatch]

Is a ceiling fan an option? Can be quite effective though I seem to remember a Mythbusters where they investigated a case where someone was supposedly decapitated trampolining underneath one.

The myth was busted, a sore head being the most likely outcome unless the fan blades are sharpened and attached to a mower engine......

[Deva Link]

Dogwatch said:

Is a ceiling fan an option? Can be quite effective ...

We just came back from Florida, with temps hoveringa round 90F, and having the ceiling fan on its slowest speed, set to blow upwards so it wasn't draughty, worked fine and we didn't need to use the a/c in the room at all.

[Bill]

dave_s13 said:

Whats the theory behind that then?

The outside temperature is higher during the day so although you might get a breeze you're allowing warmer air inside, at night it's cooler. And what someone said about keeping the curtains closed.

[Meeja]

I wouldn't do anything that would cost a penny.

Next week we will be back to temperature highs in the low teens for the rest of the year!

[freecar]

Get proper split air-conditioning. One that works as a heat pump so can heat in the winter. This way during the winter you can recoup costs by using as a heat pump and pumping the heat from outside inside! (same as during the summer just switch the units in theory!) This should provide about 3Kw of heat from 1 Kw of electricity!