#4 How come my dehumidifier doesn't remove the rated capacity?
There is the international standard for rating dehumidifiers. They are rated to extract a certain literage per day (depending on their size) based on an environment of 80% humidity and temperature of 30°C.
In New Zealand we rarely have climatic conditions with 80% humidity and 30oC temperatures. Therefore, in most cases the extraction levels will be lower than the units listed rating. In general, they will only extract about 60% of the rated capacity.