/ r ?# d7 a2 Z; q3 |# K& v9 xHeat Recovery Ventilator (HRV): 1 u! d8 n& r0 z: _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. 1 k- k8 \7 t5 j6 L% RThe 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. 7 l% b& b/ t# f1 s( H. }0 LThe result is a constant supply of fresh air, no unpleasant drafts and greater home comfort.3 `9 s6 t8 h6 M* {9 t3 f
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.