[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.