% |/ M2 q) ^! o% V/ K4 F; h
Heat Recovery Ventilator (HRV): % r1 A+ E+ m" DThe 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.: F+ D! S. ~7 _8 O( P3 s
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." ?* X2 V. i3 R6 s! U) ?
The result is a constant supply of fresh air, no unpleasant drafts and greater home comfort. : }0 n( v5 f8 k7 J9 f2 }6 E3 n
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.