jeffw@lemmy.world to Today I Learned@lemmy.worldEnglish · 1 year agoTIL about “passive houses,” building that are airtight and require barely any energy to heat or coolen.m.wikipedia.orgexternal-linkmessage-square37fedilinkarrow-up1340arrow-down118file-text
arrow-up1322arrow-down1external-linkTIL about “passive houses,” building that are airtight and require barely any energy to heat or coolen.m.wikipedia.orgjeffw@lemmy.world to Today I Learned@lemmy.worldEnglish · 1 year agomessage-square37fedilinkfile-text
minus-squarednvtr@lemm.eelinkfedilinkEnglisharrow-up12arrow-down1·1 year agoGenuine question: if they’re airtight, how do oxygen and CO2 levels remain livable? Spacecraft and submersibles require oxygen supply and CO2 scrubbers to keep occupants alive.
Genuine question: if they’re airtight, how do oxygen and CO2 levels remain livable? Spacecraft and submersibles require oxygen supply and CO2 scrubbers to keep occupants alive.