Ra,
I'll do you one better on the hot water. Come to my house (Cambridge) and try the hot water... 170 deg forever since it's fed by an on-demand gas heater 2 ft from the faucet, not a tank

I'm not saying brits can't make hot water, it's what they do (or don't do) with it that is weird. They don't seem to be able to mix hot and cold water to make warm water unless it's by pouring it into a sink, tub, or bucket.
Modern central heating is more efficiently delivered by a central radiator and blown warm air. There are high efficiency hot water heaters in the US that will also heat the entire house, just like here, except they use one central radiator in the attic or central heating unit and blown warm air. It is effective to very low outside temperatures (near zero) and quite energy efficient. On top of that, you don't lose the ability to put tables, bookcases, etc. up on the walls with external radiators. Every room in my house has one or two walls that I can't put certain things up against because they'll either block the heat (couches for example) or get ruined (antique china cabinet, bookcases, etc). That's irritating and completely unnecessary if central blown air is used for heating (and air conditioning if desired).
I strongly disagree about the lack of need for screens. It got pretty warm in cambs this last summer (not as bad as last year I hear though) so I had my windows open a lot. That means my house was completely bug infested all summer. Moths eating my wife's clothing, little flies and mosquitoes all over the walls, etc etc. I might as well have been living in a mud hut somewhere in Africa. Even with cedar panels and mothballs, she lost $500 worth of sweaters to moths. That kind of thing simply doesn't happen in the US, at least not in a modern house under reasonably normal circumstances. In 34 years, my wife had never lost a sweater to moths but in under one year here, her entire wardrobe was attacked even though we applied the usual countermeasures.
My house, freshly renovated, did not have a doorknob. When I asked about it, the landlady thought I was some crazy american wanting something called a "doorknob". A real doorknob is attached to a simple latch which lets you close and hold closed a door without locking it, convenient when you have kids or don't need the door locked. Such a device seems exceedingly rare here. Doorknobs here are attached to the center of the doors and are for nothing but pulling the door open. To actually hold the door shut, a key must be used to lock it shut. That's just a refinement of putting a log across the castle gates, not a proper door latching system, but an attempt to upgrade my front door to an 18th century American standard brought gasps from my landlady and a firm statement that I was forbidden to add a non-locking latching doorknob to the door under any circumstances.
Why is this forbidden? I asked around and it seems that to do so would mark this house as being occupied by a foreigner, specifically a colonist. This would open me up to being robbed and would degrade the resale or rental value of the house until such obvious americanisms as a latching doorknob were entirely removed. The same goes for me paying to plumb hot water to the shower so I could get a real warm water shower, and replacing the hot + cold faucet with one that would combine the hot and cold water to make warm water before it poured out.
If it's different, even if it's better, it's bad. I've talked to my neighbors and they are unmistakably proud of these quirks in their houses. If someone offered to replace for free every window in their houses with nearly indentical looking but more energy efficient double paned windows with screens, they'd say no. If someone offered to replace their faucets, they'd say no. If someone offered to replace their crappy electric showers with more energy efficient hot+cold mixing showers, they'd say no. The neighbors I talked to discussed these quirks (they brought it up first... I dont' rant to my neighbors) and as they did so, a strangly serene and superior smirk grew across their faces as if living with these annoyances made them a better breed of people.
I also have a hot water storage tank. It's upstairs, has plenty of water pressure and is fed by the same heater that runs the house heating system (hot water thru radiators), and is within 12 ft of both the upstairs and downstairs shower. They still didn't run the hot water that 12 ft to either shower. Both have crappy electrical showers. It's maddening knowing that $10 worth of copper pipe and $100-$150 worth of shower hardware would have resulted in a beautiful shower, but no, that's progress and progress is bad.
You're right, some renovators seem to be trying with the warm water faucet thing, but they just dont' get it. I have one faucet where there is indeed a single outlet, however the outlet actually has 2 openings at the tip, one for hot and one for cold. So the water doesn't actually MIX inside the faucet, it's just a way to get the hot and cold water to come out near each other. *sigh*