[sbaiddn]

That's why I'm not changing my very leaky and drafty windows - I don't want to live in a hermetically sealed Tupperware container.

Once I install an HRV system then I'll do the windows!

[Abekkus]

Or you could save $2k on materials & labor, and put in a filtered vent fan. You only need around 15CFM per resident.

Household HRVs & ERVs have suspiciously low heat efficiencies for their costs.

[BizarroLand]

85-95% isn't suspiciously low.

Where are you getting this information from?

[symlinkk]

Are you talking about a fan that simply blows outside air in? Wouldn’t that basically fight what the HVAC is doing? AFAIK the only real solution is an ERV / HRV, and they are extremely expensive (like $10k in my area)

[balfirevic]

No direct experience, but single-room HRV units look pretty cheap

https://www.amazon.co.uk/single-room-heat-recovery-ventilati...

[sbaiddn]

Does this "filtered vent fan" exchange air with the outside? If not, Im not interested.