Comment Comment by Jormundir https://en.m.wikipedia.org/wiki/Heat_recovery_ventilationThis already exists and is starting to gain popularity for new builds. It’s also not that expensive to retrofit, but is most effective when a home is sealed well. parent Jormundir 5 years ago
This already exists and is starting to gain popularity for new builds. It’s also not that expensive to retrofit, but is most effective when a home is sealed well.