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[email protected] tabbypurr@gmail.com is offline
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Default Running an extractor fan for long periods (damp cellar)?

On Tuesday, 27 October 2020 21:23:32 UTC, Vir Campestris wrote:
On 25/10/2020 23:01, Damian wrote:


A dehumidifier uses much more energy than a fan. My dehumidifier uses
330 Watts on low, a fan is usually less than 10 watts


Yes, but...

An extractor fan is taking warm air from your house and throwing it
away. This is being replaced by cold air from outside.

That's likely to be a lot more than 10 watts.

A dehumidifier is using (in your case) 330W, but that all ends up inside
the house. In fact even more than that ends up in the house, as you get
back the latent heat of evaporation of all the condensed water.

Andy


and the fan must run for far more time to get less effect.


NT