On whether changes in bedroom CO2 levels affect sleep quality

Re:On whether changes in bedroom CO2 levels affect sleep qua... by throw0101a on Tuesday January 22, 2019 @12:45PM (#18970335)

That draft you feel is money going out the (proverbial) window. It's better to stop the air going in/out through walls, doors, and windows, and bring it in in a controlled fashion:

* https://www.youtube.com/watch?v=CIcrXut_EFA

The problem is that many retrofits don't bring in outside air into the mix and just recirculate what's already in the house. This is not current best practice.

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Re:On whether changes in bedroom CO2 levels affect sleep qua... by AstralStorm on Tuesday January 22, 2019 @12:53PM (#18970426)

Any kind of air exchange will cause heat loss or gain, decreasing insulation. Does not matter if it's through wall or HVAC.

If there is no draft, it means there is no air circulation.

The only difference is if the draft goes through HVAC vents or through unsealed doors and windows, or through walls.

If your local heaters are effective and seal controllable, there should be really no difference in many municipal settings as the heating is waste heat from electricity generation anyway. (Those cooling towers "greens" love to hate.)

Certain baseline air flow is strictly required and it is quite a lot, especially in small volumes.

Now, if you have to burn something to heat, then by all means do install a heatpipe recovery system.

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Re:On whether changes in bedroom CO2 levels affect sleep qua... by throw0101a on Tuesday January 22, 2019 @01:53PM (#18971122)

You're not wrong, but one can mitigate energy loss with an HRV (or ERV) and get fresh air in a controlled manner:

* https://en.wikipedia.org/wiki/Heat_recovery_ventilation

With the added bonus that the air can be filtered as well, instead of coming in as-in through leakage.

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