de-humidifiers

[rayjay]

Well regardless of those saying a de humidifier is not needed, my windows and drywall rotted out and I had to replace them. I now have the biggest de humidifier I could get and I still have a major problem.
What was explained to me was that houses are built now so tight, that little air is incoming from outdoors where humidity is lowest. Indoors, where we heat recirculated houshould air, we increase the capacity of the air to hold much more water. As the humid warm air contacts cold surfaces, the humidity precipitates, and if enough, runs down to soak everything around.
I replace 20 to 24 litres of water nightly in my tanks. It's either get rid of a lot of tanks til the problem isn't there any more or spend more.
I've decided to spend more and buy the HRV. Here in London is a major manufacturer of Hrv's that builds for major names. I contacted engineering there and they took statistics from my house and calculated that I needed about 240 cfm's of incoming air to remedy my problem. They needed to know the volume of the house, the temperature of the house and fish room, the total surface area of the open water in the house, and how much lenth there would be in duct work there would be on both ends of the HRV.
The unit chosen is a double exchanger unit and at the top of their non-commercial types, a Lifebreath 300DCS.
Lifebreath HRV's