I’ve been reading the whole thing expecting the moment you’ve forget about it for a week and then come back obsessively, but every few lines you remember me that you are still on meds, and I can’t wrap my mind around having ADHD and being able to focus on a task for so long. I hope my doctor calls me soon to start at least the diagnosis…

A heatpump is a device that moves heat from one place to other.

It subtracts heat in one side (cools that side) and dumps it in the other (heats that other side).

We have already those devices available to install at home, and are commonly known as Air Conditioning.

The inside unit grabs the heat (cools the room) and the outside unit dumps the heat.

Those same devices are now reversible, so they are able to grab heat from the outside unit, and dump it in the room (heats the room).