[k-mcgrady]

Interesting. Maybe it depends on where the property is located within the UK. There was a big double glazing push in Northern Ireland in the 90's and I can't remember the last time I was in a property without it. I've rented in London (Z2) a few times and haven't come across an issue yet but I may have been getting lucky. The different heating requirements between Southern UK and Northern are pretty astounding so that might have something to do with it. I haven't used the heating in my London flat in about 4 weeks now and throughout the winter 4 hours a day was plenty. In NI I would have been using it for another couple of months at least and almost constant during winter.