The only way you're going to get 2 kW to work well for HVAC is if you're further West than Weatherford or Austin in Texas and use a Coolerado indirect-evap cooling system. The closer you get to the Rockies and/or the Desert, the easier it is to get the same sensible cooling on only 500-1 kW. But in the more humid parts of the Country, it's just not going to work well for you without some compressor or similar refigeration cooling to get you into the comfort zone.

I researched all of this when my AC died and I was looking for alternatives- along with doing it again when I was working on energy management and security solutions in another lifetime when I was a CTO of a company.

Heh... A heat pump may be efficient in terms of what it does for it's power consumption- but it consumes the SAME amount of power as a high-efficiency AC unit in terms of what it consumes per every ton of heat pumping capacity. Start load amps requires that you source it 10-12kW for a typical 2-4 ton HVAC system.

They're not strange. Using Joules and Ergs are strange. As for being used nowhere else...you'd be mistaken on that score.

kWh is simple, really. 6 kWh is either 1 kW over 6 hours or 6 kW over 1/6 of an hour.

The average house would be properly sustained with something between 8-15 kW continuous with some higher-end sets of efficient appliances needing up to 25 kW to keep everything out of brownout conditions within the house.

And those are for pared down usages. 15kW works out as a good start for what is actually reality for a 1500 square feet house to ensure all things work as you're used to.

No, it wouldn't. A 1-ton HVAC might run in a 2kW profile, but it'd leave you about 500-700W of leftover before you exceed the budget and go into brownout on the unit. 2kW is a minimum power level to keep maybe a fridge/freezer going or a small, small house's low-end consumption.

2kW working out on a house is a lie.

Ah, but it consumes ~10-20kW being more efficient.

Considering that you find it present in the engine all the same (cylinders...)... I think someone could manage if it were just the heat that was a problem.

The reality is, how big are those fuel cells for 2kW of power? Your car typically does vastly MORE kW of energy output- somewhere between 25 and 367 kW of energy. And we won't even get into the mis-representation of 2kW being the average for a house...most of the larger appliances use 1-3kW apiece. (This doesn't get into the HVAC, regular or on-demand water heaters. It can be as high as many car's peak output.

Yes, local changes are currently unpredictable. "The stuff might change in some ways" includes issues like "you won't be able to grow food where you're growing it now", for example, because close to 2 billion in Asia are likely to suffer seasonal droughts, when their summer water supply melts away. So when they want to be growing food, the river they depend on for irrigation will dry up. If that happens, what do you think India and China will do when a billion rural farmers flood their cities looking for food and work?

That's in addition to "it's going to get hot and some people will have to move" not instead of.

Well, I guess any sufficiently advanced intelligence is indistinguishable from psychic powers to some people. Personally, I think the people who wrote "Al Gore" in the write in area and checked off his name intended to vote for Al Gore, but maybe I'm just guessing. Over 2000 votes of this type were discarded because "the voter's intent was unclear". It's your call: psychic or obvious.