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Two other reasons a tenant may open a window sometimes in winter:: P9 V6 u, c" k! t
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1. Air quality inside the house is too bad;
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#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.. Q/ ]) \1 E' q* s2 |* u0 v/ Z
& }: v. Y6 H" D* G3 R4 c#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.! ]* |* ~# Z5 A* L. K
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For reference only!!!* o& J" F& z* G( R% b. U8 S& N9 `
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