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Two other reasons a tenant may open a window sometimes in winter:2 g. E# S7 W; g& c) L. m, W# h
$ P \7 n; g4 [' P4 D. p/ z1. Air quality inside the house is too bad;
1 R5 X- q. F* n3 g" ?- Y" m1 \' F2. Temperature is not even or much higher in certain rooms.
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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.5 v5 K' k1 j9 h7 s7 B1 E* I
& W& g2 n. \3 x+ n6 u3 T#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.
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For reference only!!!1 ~- C+ |+ Z( b& ~% q+ o) D
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