Heat pumps are great. But they're usually installed as an afterthought — bolted to a wall, dropped on a pad, or bracketed to siding. Loud, visible, and in the way.
The age-old chimney was once used to exhaust dirty air with the atmosphere. A heat pump similarly needs to exchange heat energy with the outdoors. It's aesthetics are classical but it also is uinquely suited to the needs of a heat pump.
Product mockups showing typical standing-seam installations.
The Foundation, heat pump, and Ghost Stack.