Using dehumidifier and humidifier together?

waqasahmed

So a dehumidifier uses around 240W of power and a humidifier uses around 50-80W, and they often come with their own ice packs

I was wondering if you could perhaps use them together to hopefully achieve something very similar to air con, without the use of an actual air con / refrigerants? 

FreeBear

If you want to cool the air cheaply, stand a frozen 2l bottle of water in front of a fan. It won't drop the temperature massively, but it should be enough to make it bearable without costing a fortune.

A dehumidifier also generates a fair bit of heat, so if you are looking at cooling, you have the wrong device.

waqasahmed

FreeBear said:

If you want to cool the air cheaply, stand a frozen 2l bottle of water in front of a fan. It won't drop the temperature massively, but it should be enough to make it bearable without costing a fortune.

A dehumidifier also generates a fair bit of heat, so if you are looking at cooling, you have the wrong device.

If you do that though, aren't you basically humidifying the room? 

FreeBear

waqasahmed said:

FreeBear said:

If you want to cool the air cheaply, stand a frozen 2l bottle of water in front of a fan. It won't drop the temperature massively, but it should be enough to make it bearable without costing a fortune.

A dehumidifier also generates a fair bit of heat, so if you are looking at cooling, you have the wrong device.

If you do that though, aren't you basically humidifying the room? 

There will be a little bit of condensation forming on the bottle which gets transferred to the air. But this has the effect of reducing the air temperature (marginally).

On days like today, slightly raised levels of humidity should be of little concern.

grumbler

waqasahmed said:

FreeBear said:

If you want to cool the air cheaply, stand a frozen 2l bottle of water in front of a fan. It won't drop the temperature massively, but it should be enough to make it bearable without costing a fortune.

A dehumidifier also generates a fair bit of heat, so if you are looking at cooling, you have the wrong device.

If you do that though, aren't you basically humidifying the room? 

And where does the water come from that humidifies the room?

Two devices that you suggested will consume together 290-320W of energy for heating the room.

BTW, the freezer that was used for freezing the bottle of water will heat the kitchen more than the bottle cools the room.

 

chrisw

There's only one way to find out - FIGHT.

FreeBear

grumbler said: BTW, the freezer that was used for freezing the bottle of water will heat the kitchen more than the bottle cools the room.

If your freezer is in the kitchen, I would agree.

Mine is in the garage, so not a problem.

Alnat1

Simple answer - don't do it. A lot of expense for absolutely no gain.

Sandtree

waqasahmed said:

FreeBear said:

If you want to cool the air cheaply, stand a frozen 2l bottle of water in front of a fan. It won't drop the temperature massively, but it should be enough to make it bearable without costing a fortune.

A dehumidifier also generates a fair bit of heat, so if you are looking at cooling, you have the wrong device.

If you do that though, aren't you basically humidifying the room? 

How do you think you'd be humidifying the room? Because the bottles have condensation on them? Where do you think that condensation has come from? Worst case it would be neutral, you aren't introducing any additional moisture to the room assuming you're bottles are frost free and more likely you'll end up with puddles under the bottles and so you've actually dehumidified the room by a tiny amount.