> Thermostats are not common outside the US.
Do you have a source backing that up? I was in Germany last summer, and they seemed to be just as ubiquitous. (both in Berlin and Munich)
Do you have a source backing that up? I was in Germany last summer, and they seemed to be just as ubiquitous. (both in Berlin and Munich)
Asia: I have traveled for months in China, India and Japan and don't recall seeing any thermostats, aside from hotels and commercial spaces.
Europe: no A/C in most countries (aside from commercial projects). They make extensive use of residential heating using liquid pipes that pass through the building. In southern europe split ductless A/C systems are common.
South america: I believe they have both central air and split systems.
USA: central air everywhere!
Africa: no money for A/C. ;-)
The split systems are much more energy efficient, so they should be gaining ground.