6 B+ N2 z9 m3 s9 ?" o1 Q
Heat Recovery Ventilator (HRV): 8 y' ^9 V3 s! B0 j+ 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.- ]+ U4 C. L5 |) [" d0 g$ r4 L: h
The 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. " Z: C: h; L& S T) f: I& XThe result is a constant supply of fresh air, no unpleasant drafts and greater home comfort. R+ \7 t' Z' E* c! K* [* s
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.