Quote:
Originally Posted by hayden55
Rooster you can look up "ERV" Energy recovery ventilation. I hear they exchange air with around a 90% efficient energy transfer now on some of them. I doubt the roi is good enough to retrofit but a purpose built house would be neat
|
I guess such retrofit would never be an option in my apartment, but maybe for a detached house the comfort and eventually the healthier ambient inside would justify, even if the ROI regarding energy-efficiency would take a long time.