ACs are just heat pumps where they forgot to install the reversing valve.
Heat pumps running in heating mode are basically ACs that are trying to cool down the outside. The fundamental technology just moves heat from one place to another, leaving one place warmer and one place colder.
This is also how fridges and freezers work - they have heat pumps that pump out the heat from inside their box and as such make the room they are in warmer.
ACs are just heat pumps where they forgot to install the reversing valve.
Heat pumps running in heating mode are basically ACs that are trying to cool down the outside. The fundamental technology just moves heat from one place to another, leaving one place warmer and one place colder.
This is also how fridges and freezers work - they have heat pumps that pump out the heat from inside their box and as such make the room they are in warmer.
It’s why it’s so annoying that dual function AC/Water CH don’t seem to exist (or at least, they don’t qualify for government subsidies).
In the summer, I’d like 3KWH of cooling. And in the winter, maybe 15KWH of heating. But to do that, I have to buy two boxes.
Most ACs nowadays can do both. And are actually more efficient at heating.