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Heat Recovery Ventilator (HRV): ! u8 z" L# e4 h) r! |6 YThe heat recovery ventilator (HRV) is the proper choice in colder climates where there is excess humidity during the heating season, since it can eliminate it. * e3 S9 ~: k9 c- M* r7 mThe HRV keeps the home supplied with a steady flow of fresh outdoor air. As stale, warm air is expelled, the heat recovery core warms the incoming fresh, colder air before it is distributed throughout the home. 0 F6 U* v @" k4 k1 UThe result is a constant supply of fresh air, no unpleasant drafts and greater home comfort. - n3 |3 j4 d6 Y' B9 a3 t
其实这里房子冬天室内湿度都很低,一般在30左右,不存在湿度过高的问题。主要问题是窗户保温不好。外面温度很低时,室内窗户还会结冰。我的解决办法是:remove inside sidings for all windows and doors, redo undulations and seals; in summer time re seal out side frames for all windows and doors. Then increase the temperature inside. It helps a lot. But the best way is to replace with new windows and doors with good insulation. Add more insulation for the house if necessary.