It doesn't take half an hour to pre heat, it doesn't heat up the whole house, and I'm not sending my power bill through the roof every time I want to make a meal for one person lol
I thought you guys had 240v circuits precisely for this kind of load? On a decent 30a 230v circuit (they generally don't use anywhere near 30a though) here in Europe it takes considerably less than that. I'd say mine takes 5-8mins for 230c (which is around 450f) and it has a rated power of 3500w.
I guess it likely comes down to power rating, then. Also, with our old oven it used to take around 2x the time the current one does. That was just because the seal on the door was old and worn.
AFAIK almost any appliance labelled/presumed to be 220V in the US is actually 240V unless it was made before the 50s, because we aren't allowed to have nice things (like accuracy)
Yes. The USA switched our mains voltage from 110/220 to 120/240 about 50 years. There is a tolerance built in (10%) so that if a circuit is actually running at 100 or 220 then its within specs. A 120v circuit can run anywhere from 108 volts to 132 volts and be within spec. Its a pet peeve of mine when people say 110/220.
It's possible he's running it at 120v if the electrician did a bad job in the kitchen. 400v ovens are fairly common where I live and can run on 240v in a pinch (even if it's not recommended).
The only large appliances that aren't running 220-240v in the US are the refrigerator and dishwasher .Ovens, washing machines, tumble dryers, furnaces, and water heaters are all on 240 volts.
Just tested my air frier and it's takes about 2 minutes, but obviously, it's way more energy efficient. Plus easier clean up. I can just throw a bunch of fries and chicken strips in there and it's good to go. Whereas with an oven I'd probably need to buy a special rack or something so all the oils don't stick to the bottom of the fries. Plus heating up all that empty space!