Heating not available - Who bears the costs?

There is news.

GU has the heating system as a PC version for an additional €1500 and with immediate delivery on hand.
The heating installer is now babbling about a five-figure surcharge due to thermostats, etc.
He also noted that in this case Nibe would probably have to bear the additional costs.
A bit strange, isn't it?

There is news. GU has the heating system as a PC version for an additional €1500 and with immediate delivery available. The heating engineer is now rambling about a five-figure surcharge because of thermostats, etc. He also pointed out that in this case Nibe would probably have to bear the additional costs. Kind of strange, right?

not really. It does make a difference if you buy an Audi without any frills that is not available and now you are supposed to get an Audi with a full package.

With the thermostats, it may be that he now wants to install some with a cooling function. There is then a bypass that keeps the heating circuits open at high temperature. Probably not needed, but that might be the standard procedure for the heating technician: If cooling -> install cooling thermostats. Then there is the luxury version that keeps the thermostats open via a control command as soon as the heat pump goes into cooling mode. For that, you might need additional smart home stuff. All that would have cost us a few thousand euros as well; we then decided against it. Ask if it can also work with the simple thermostats. Then in summer you just have to turn them fully open, or manually open the control valves on the manifold. Important: remember the setting, preferably make a small mark and reset it in autumn. If it then costs a few thousand euros, but you get the heat pump immediately, you have to consider how expensive waiting might otherwise be.

There are simple digital room thermostats where you can manually switch between heating and cooling, and in better ones, you can also store this automatically in the timer program. They don't cost more than simple digital room thermostats. I am always amazed that people build houses for hundreds of thousands of euros and hang such ugly bimetal devices on the wall...

Of course, there are also bimetal devices with manual heating/cooling switching.

Besides, your heating technician has nothing to do with that. It belongs to the electrical trade.

OK, with us heating and electrical work are done by the same company. Therefore, there is no distinction for us there.

It's not like it has nothing to do with the [Heizi]. For me, the electrician installed it, but I bought and "picked out" it from the [Heizi].