This. I'm guessing it's the international term for central heat/air? I've seen some houses with central air that have the vents on the floor instead of ceiling.

Anyway I have central air/heat and the vents are on the ceiling.

Radiators

the floor is lava

Central air

No, I live in Florida...

I wish we had one like that. Lord the thermostat struggle at my house is REAL...he complains about me having the heat too high in the winter, then he tries to give me hypothermia via the A/C in the summer.

That's what I was thinking at first. Floor could mean vents on the floor but I've lived in houses where they were on the floor, the baseboards, the wall or up near the ceiling.


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The thing with radiators is that they use a boiler to move the steam. Mine usually breaks down every Winter even though it's somewhat new. Like the water tank it uses can plug up and you'll find yourself without heat and you have to drain the entire system, which is usually all of the pipes in the house. Not that they're filled with water, it's just steam that passes through. Although a lot of cheap apartments that offer free heat use something like a radiator but it's a little different.

Radiators. Underfloor heating is not a thing here.

Zoning a house is the way to go even if it's not a big house you can do a zone for the upstairs and downstairs. Since heat is obviously rising up, to cool your upstairs to 72 degrees you would probably have to set the thermostat in the 60s downstairs. That would go away if you split the house.

I live in California, so any type of heating is unnecessary.

neither

A/C

Not exactly. Like I was saying Koreans earlier they have heating that is literally under the floor called ondol. They use pipes that run hot water under the floor that heat the house and the heat rises. It also feels totally amazing when you step on the floor in the morning or sleep on it.

Both.