[heero_yuy]

I use a dehumidifier in the kitchen-diner but it only goes on when the humidity guage shws more than 70%. Cooking and a lot of house plants are resposible for this rooms higher value.

I generally only need it wintertime when ventillation is limited and there's an incidental advantage in that condensing the water actually releases quite a bit of heat. (Latent heat of vapourisation) Several times the energy used by the compressor and fan in the unit.

1 Kg of water condensed will release approximately 2.2 KJoules (1 hour at 2.2 KW)