Conversion of gas boiler to heat pump

You have to swallow a toad. I will build it completely myself, of course with the help of a system builder.

You can do it. But I consider it irresponsible to propagate such a tip here. In the case of water damage or fire, it gets a bit expensive from an insurance perspective. And with the new propane heat pump, that's a whole different chapter...

You can do it. However, I consider it irresponsible to propagate such a tip here. In the event of water damage or fire, it then gets a bit expensive insurance-wise. And with the new propane heat pump, that's a whole different chapter...

The tip was about procurement, not installation.

Does anyone have experience with the Panasonic Geisha air-to-water heat pump? It is relatively affordable. How is the domestic hot water preparation implemented? Are there square hot water tanks? The round ones don't look particularly elegant.

- Two units in use. Mine cost less than €3,000 each last year (I installed them myself). Experiences are positive (as with basically all Pana users). - Square only if you build a square box around it. Otherwise, always round. Round also makes sense. Otherwise, the shape doesn’t matter unless you need a design piece for the living room. But I only know the hot water tanks from some kind of boiler rooms that aren’t trying to win any awards. - Domestic hot water preparation as with all other heat pumps. Switching from heating to hot water preparation. Only with the Pana the switching is done externally.

- Two pieces in use. Mine still cost under T€ 3 each last year (I installed them myself). Experience is positive (as with basically all Pana users). - Square only if you build a square box around it. Otherwise always round. Round is also sensible. Otherwise the shape doesn't matter, unless you need a design piece for the living room. But I only know the hot water tanks in some heating rooms that don't want to win any prizes. - Hot water preparation like with all other heat pumps as well. Switching from heating to hot water preparation. Only that with the Pana the switching happens externally.

Thanks for the answers. Which hot water tank did you take? The heat exchanger surfaces should be as large as possible with a heat pump.

Which hot water storage tank did you use? The heat exchanger surfaces should be as large as possible for a heat pump.

I used two high-performance tanks from SHWT (1x 300 liters and 1x 200 liters). They have a good price/performance ratio and are also recommended in relevant discussions for the Pana.

As far as the self-installation of monoblock devices is concerned, the internet is full of help and diagrams. As long as a heat generator is replaced, most of the piping can still be used. Everything else can be easily solved, for example, with compression fittings, since work is usually done above plaster. For electricians, the connection is child's play. So I personally strongly advise people with manual skills to install things themselves, as long as they are not subject to mandatory professional installation.