Monday, December 7, 2020

I know it's winter when...

 ...my head is hot and my feet are cold.

That's what happens when you have HVAC vents in the ceiling.  The warm air gets pushed down until it reaches the thermostat.  Then it shuts off.  Everything below the thermostat, though--which is me when I'm sitting down, which is most of the time--remains cold.  Except my head which is close enough to the thermal boundary to get hot.

If those vents were near the bottom of the walls where they belong, the house would warm from the bottom up.  Hot air rises, so the air would mix better, too.

The moral of this story is that if you ever design your own home, don't put those vents in the ceiling.  You live in the lower half of the room, not the upper half.

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