Preheater necessary - or rather enthalpy exchanger?

According to our invoice from the sanitary department, we have installed a pre-heating coil in the controlled residential ventilation. However, we never discussed this beforehand and I still find it unnecessary.

We would rather consider - retroactively?! - installing an enthalpy exchanger. If I understand correctly, it also helps to prevent the system from shutting down immediately to protect against icing at (no idea) -3°C.
We built with Poroton and have a two-layer lime plaster, so we can already notice that the climate inside the house is extremely pleasant - dry, humid, muggy somehow doesn’t make much of a difference. However, we haven’t moved in yet, we are just in the final phase.
But you always hear that the dryness without an enthalpy exchanger can eventually become really bad. Nevertheless, we thought it best to wait and see how it actually develops before installing an ET. But then there is the risk that the system will ice up without a pre-heating coil?

Did I misunderstand something?
Do your systems have pre-heating coils AND/OR enthalpy exchangers?

You definitely need both. Enthalpy is not expensive, at just under a thousand euros you're well off. So go for it!

Hmmh... no one else has an opinion on this?

A lot has already been said about it.

Without enthalpy and preheating coil = icing and dry air
Without enthalpy with preheating coil = dry air and high electricity bill
With enthalpy and preheating coil = comfortable air and high electricity bill
With enthalpy without preheating coil = comfortable air and a risk of icing

Well... what do you mean by high electricity bill, that little is completely outweighed by the comfort.

OK. Thanks already for the information. Then we need to reflect again...