

A 30 year old friend of mine didn’t know about incognito mode. A certain subreddit popped up, on his projector screen, as a recommendation when we were searching for a sports stream to watch. I don’t think anyone else noticed or would really know what the sub was, but I later casually mentioned this really cool browser feature to use in case you need to search something weird.
I learned one shouldn’t assume that everyone is familiar with all the digital tricks to hide what they’d prefer others not see.
An HRV tempers the incoming air with the air going out no matter the season. So, in winter, it recovers some heat from the exhaust air and exchanges it with the cold intake air, keeping heat inside.
In the summer, it’s the opposite. The exhaust air cools the hot intake air, keeping the heat outside.
It’s essentially always working for your benefit (except for one edge case that I can expand on if you’d like), always providing fresh air and exhausting stale air while helping to keep the interior temperature where desired.
I’d recommend keeping it on all the time, no matter if you open windows or not.