[msh]

You are comparing prices of air2air heat pumps with air to water. The latter is much more expensive and you cannot get them for 1k$ in Sweden.

[Glawen]

indeed, was going to say the same. It cost me around 15k€ to upgrade my house to a air 2 water heat pump in France.

time will tell if I will get a return on my investment, the big question will be how long my heat pump is going to last