“The thermostat says 70 and I am still uncomfortable.”
Temperature is half the story
How warm a room feels depends on how readily your body can shed heat, and that depends heavily on the moisture already in the air. At the same thermostat reading, humid air feels warmer and stickier, and dry air feels colder.
This is why two rooms at an identical temperature can feel different, and why turning the thermostat further in one direction often does not fix the complaint.
Winter here is a drying problem
Cold outdoor air holds very little moisture. Bring it inside and warm it, and its relative humidity falls sharply. A tight house slows that down; a leaky one accelerates it.
The result is the familiar set: static shocks, dry skin and sinuses, gaps opening in hardwood and trim, and a house that feels colder than the thermostat claims — so people raise the temperature and pay to heat air that still feels wrong.
Summer here is the opposite
In cooling season the job is removing moisture, and an air conditioner does that as a side effect of running. Which creates a subtlety: an oversized system cools the air quickly, satisfies the thermostat, and shuts off before it has removed much moisture.
The house hits temperature and still feels clammy. The fix is not a bigger system — it is correct sizing, adequate run time, and sometimes dedicated dehumidification.
What can be done about it
- Whole-house humidifiers add moisture in winter at the equipment rather than room by room
- Dehumidification removes it in summer independently of whether cooling is needed
- Correct equipment sizing so cooling cycles run long enough to actually dry the air
- Sealing duct leakage that is importing humid attic or crawlspace air
- Measuring humidity alongside temperature, so the diagnosis includes both