[kwhitefoot]

> What's the situation in Norway and other countries? Is hot air heating widely used?

Central heating of any kind is rare in Norway. There is widespread use of underfloor heating (either water borne or electric) in bathrooms. Its fairly common in living rooms too but definitely not the majority.

Most people use electric panel heaters and a wood burner. In the past we used quite a lot of paraffin burnt in a pot burner in the centre of the house which could keep most of my 130 m2 house warmer than we wanted. That's no longer allowed so I burn wood (compressed wood waste from sawmills).

> In what kinds of properties do you use air to air heat pumps?

All kinds of free standing houses, terraced houses. My next door neighbour has two, one for the ground floor and another for the bedrooms in the floor above.

The only thing holding me back from getting a heat pump is that the wiring in my house is not up to it so it would be a substantial extra cost to get that upgraded. That's not a problem for most UK houses or recently built Norwegian ones.

In this small town of 6000 people I think that probably one in four of the detached and semi-detached houses have air to air heat pumps.