Question about DeLonghi DH40P Dehumidifier
...I have a damp basement and need to leave it on.Some people say it is as expensive to run as an air conditioner.Please give a factual answer as to its'energy efficiency. Thanks, Tom
Yup, they eat energy.
An electric dehumidifier includes a refrigeration cycle that is very similar to a window AC units and refrigerators. They cool the air in the basement to condense and collect water and remove humidity, heat the air as a required consequence of the refrigeration cycle and dump it back to your basement.
Two sources of humidity in basements include warm outside air that naturally cools due to below grade earth contact and water passing from the ground though the floors and walls and evaporating into the basement. Dehumidifiers do most of the work in the summer when higher temperatures outside enable air to hold more water content.
In the winter, cooler outside air contains less moisture by weight eventhough it may be raining and the relative humidity in basement will be less because the air is warmed relative to the outside. The lower moisture content in the winter also absorbs the water passing through the walls and floor.
From an energy perspective, you may want the humidity set NOT below 50%. This will keep humidity below the level mold desires, but prevents the dehumidifier from doing more work and eating more energy than needed. A cheap battery powered temp/humidy meter left in your basement will help. Sources that include the "mold triangle" (temperature, water & food) often separate fact from expensive hype.
If the dehumidifier doesn't keep up, consider adding a moisture barrier to the basement walls and floors such as Dry-lock and floor paints to ****** moisture entry. Moisture barriers act very similar with water as insulation does with heat. They don't eliminate the need for a dehumidifier, but they reduce the work they do and energy they eat.
Posted on Oct 07, 2008
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 22, 2012 | Whirlpool Dehumidifiers
Sep 16, 2011 | Haier HDN655E Dehumidifier
Jun 19, 2011 | Goldstar DH504EL Dehumidifier
Jun 12, 2011 | Friedrich D40 Dehumidifier
Apr 27, 2011 | Fedders Dehumidifiers
Oct 06, 2009 | Kenmore 5365 Dehumidifier
Aug 08, 2009 | Whirlpool AD40DSL Dehumidifier
Jul 08, 2009 | Kenmore 54501 Dehumidifier
Jun 04, 2008 | Kenmore 54701 Dehumidifier
Jul 27, 2013 | DeLonghi DH40P Dehumidifier
Jan 21, 2010 | DeLonghi DH40P Dehumidifier
552 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: