Our houses are not insulated to any kind of degree to those in Norway. You need to keep any heat which is generated, not pass it through your roof, windows and walls.
I agree 100%, I'd never advocate for one in an older house, but in the new build house Lizzie mentioned, a heat pump, correctly sized and setup should be more than up to the job.
I'd wager your average new build house, especially if built by one of the big companies, isn't insulated enough for a heat pump.




