Best Practices for spreading temps around the house

[Jerry Prsha]

Folks,

I’m curious as to how you deal with extreme temperatures with your HVAC systems.   We hit -6(F) overnight with a dew point of -15(F).   I (think) that how I’m handling this makes sense however, I’m always open to other opinions.

We generally keep the house at about 73(F) year-round.  And at night, have temp drop to 71(F).

I have XTension turn on the HVAC blower to constantly ON if the outside temperature reaches 93(F) or, below 20(F) in an attempt to better spread the air more evenly.  The Thermostat is in the hallway, away from all of the windows and doors typically, are shut to all of the bedrooms at night.

We will sometimes build a fire in the Great Room and, I know that a fire creates a negative pressure in the house from the air rushing up the flue.  And that air usually will end up coming in from outside, I would have to think that the warmth generated by the radiation from the fire would have to heat the surrounding space.  And then having the furnace fan always on, would help spread that heat to the surrounding rooms?   Or does having a fire just negate itself because of all the cold air coming in for cracks in the doors and windows that I’m not aware of?

If you have time, I’d love to hear your theories about all of this.

Thanks!
Jerry
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