Hi - a few years ago, I replaced my old Mitsubishi heat pump with a new one. Something like this, though I don't know that this is the exact model:
https://www.ecomfort.com/Mitsubishi-M3L30W06061500/p67615.htmlHowever, ventilation isn't part of the deal, and since I have no really active ventilation system in my house, I am left to:
- cracking windows and opening doors - not always super-efficient, and dependent on my remembering to do things.
- operating bathroom fans (super-loud, basically, I don't do this).
I also maintain a CO2 detector to remind me, if I forget about the doors and windows from time to time) (above 1000 ppm an alarm sounds).
Can anyone recommend a new approach? I am easing toward getting comfortable with a new contractor working on my house, and they may be able to recommend something, but if someone here has had a good experience with a ventilation system bringing in fresh air but not sacrificing more energy than necessary, that would be good to know.