Air source heat pump with direct condensation?

Hello everyone,

after a long search, we have finally come across a new build offer that might be suitable for us. We now want to arrange an appointment with the provider, and for that, I am collecting questions that we want to ask the provider.

Among other things, the construction description we already have states that a "Luft Wärmepumpe mit Direktkondensation" (ECO – 6 LA DK von Bartl) will be installed. What should I imagine this to be? Is it an air-to-air heat pump or an air-to-water heat pump or something in between? Does anyone know something like this? Does it make sense?

I am still totally clueless about this topic...

Hello, this is an air-to-air heat pump. Direct condensation because the heat is transported directly into the buffer tank via the refrigerant line. So without detouring through another water pipe. I have had an ECO-5 LA DK for a few weeks now. (As a replacement for a Tekalor heat pump that broke after 11 (!) years. Apart from the quality and heating performance of the old system, I was anything but satisfied with the service.) The Bartl heat pump works great. However, we still need to adjust the settings a bit. At temperatures just above freezing, it is still far too warm in the house (150 m2).