[raugustinus]

Here in the Netherlands there's a huge incentive to move to heatpumps (subsidies and whatnot). I believe most of those (if not all) that are being installed have a defrosting mode which is automatically activated. I have seen mine defrosting in the last few days since it's finally below zero (celsius).

[Faaak]

Yeah, it's really strange to have an heat pump without automatic defrost, as it's something that's really needed on cold and humid days

[johnchristopher]

How much does it cost in the Netherlands (with incentives such as government subsidies) to install (hardware and installation) ?

[apexalpha]

Other Dutch person here... with a heat pump.

And the only answer is that it completely depends.

We spent €30k renovating our house but that included removing the entire old heating system, installing underfloor heating, extra insulation, ventilation, remove of gas pipes, new electrical switchboard, upgrade to 400V electricity and, well, the heat pump.

Just the device itself (air-water) is probably €6 or €7k excluding a €3.3k subsidy.