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Two other reasons a tenant may open a window sometimes in winter:5 s- h6 C) @& ~, o& d7 R6 n7 j( u
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1. Air quality inside the house is too bad;& q9 T% e- [/ K1 Y) D
2. Temperature is not even or much higher in certain rooms.4 _, U) u' R( T4 e6 `
/ E- D; Z9 T7 \: ^1 N#1. All new houses have two seperate fresh air ducts, but some old houses like mine has one, only for air supply for burner. What I have done to improve the air quality are: Replaced exhaust fan switches with timers in all bathroom and installed exhast fan and air duct if there is no before, the timer can exhaust indoor poor air out evertime a tenant using bathroom; I also installed exhaust duct for cooking hood, so people can exhaust cooking smells out; Changed the thermostat that can set HVAC fan manual on once a while to circulate the air inside the house.
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#2 For temperature control: basically the basement temperature is much lower than upstairs. It maybe too warm for people in room upstairs while keeping comport temperature in basement. I readjusted all HVAC vents to make sure vents are open in basement and close more upstairs. Furthermore, I reduced blower speed to the lowest and according to adjusted the burner flame of the furnace.1 P; K! b) `( d
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For reference only!!!% p/ ^7 O2 p- Z. G0 p
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