% W& Q# T5 q) V8 r2 @Heat Recovery Ventilator (HRV):1 _( \8 P: R3 X' J
The 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. $ a' T+ z# b& f3 c% a- }9 QThe 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.5 ~* w/ \+ E: [: e
The result is a constant supply of fresh air, no unpleasant drafts and greater home comfort. % ^; M( A: W. N: ]# i$ p6 _2 U
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.