Why should I put a brick in my fridge to save energy?

Answer 1

Best Answer - Chosen by Asker

It will initially use energy to cool the brick when you first put it in the fridge but once its there and cooled it will act as an accumulator which will prevent excessive temperature variation when you open then close the fridge door.

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Asker's Comment:

hit the nail on the head

Answer 2

cos your crazy?

Answer 3

It helps keep it cold when you open the fridge.

Answer 4

too keep it cold

Source(s):

www.green.org.uk

Answer 5

dunno why but it cost less when something in th efridge can be a box or newspapers this also works for freezers

Answer 6

Heard of putting one in the toilet cistern to save water.
Suppose if it is your fridge you can put what you like in it !!!

Answer 7

i dont believe this is question is right
but if it is the reason would be because the energy that the brick must lose to get to the temperature of the refregerator is less than the energy that a same volume of air should lose

p.s im not sure im just imagining

Answer 8

You should? Didn't know that one.
But if you have a fridge full of bricks then you have no food and don't have to plug the fridge in, saving electricity, and you have to order out, saving you energy.

My advice is not to listen to a word I say 'cos I'm a bad influence.

Answer 9

If this is not a joke , then you are mixing up the idea with putting a brick in your toilet cistern to save water, which does work. A brick in the fridge will do nothing at all!!

Answer 10

It sounds insane but it might work, I have heaters that store heat in bricks and release the heat slowly, not being a physicist I can not see any reason why the opposite would not work apart form the amount of bricks needed.

Answer 11

I do not believe that it will save energy.
I do believe that it will provide hysteresis for the refrigeration system so that the effect of minor changes in temperature from opening the door, putting a hot pie in the fridge etc. will be minimized.
Scotch ice (those plastic blocks filled with blue liquid that one uses for coolers) would probably be more effective.

Answer 12

Yeh, seen the tree-huggers advocating this...

It's probably because some 'greenies' think that keeping bricks cold instead of food is good for the environment...

Honestly - who wants a brick in their fridge?

Answer 13

ice works better...like an ice box (reuse a container)

Answer 14

i think your getting mixed up with your toilet cistern and saving water
other wise i hav"nt a clue,sorry.

Answer 15

Because you aint got an elephant..???

Answer 16

Nope, you all missed it.

It will take some energy to cool the brick, but if it is in the fridge and you open the door, less air pours out. Therefore there is less air to bring back to cool temperature. Of course it doesn't have to be a brick. It could be anything that displaces an amount of air.

One very efficient refrigerator is compartmented inside, with doors on each compartment. When a door is opened, only air from that compartment escapes.