+ }0 r& c8 M% w8 R: y% [9 rHeat Recovery Ventilator (HRV): 0 L/ ~# Q7 W4 k5 pThe 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. 7 I1 q" Y( s8 p1 S* R% x3 q/ N; 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. 1 ]# |4 `$ }# S# u+ r2 w! G7 ^4 TThe result is a constant supply of fresh air, no unpleasant drafts and greater home comfort. : k! d3 V' u2 Y' E3 J# o* h% 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.