Combine heat pump and water-bearing fireplace

To be self-sufficient, I recommend buying your own piece of forest, a wood gasifier as a central heating system, and a sufficiently large generator.

The fact is and has already been mentioned: combining 1 high-temperature system with a low-temperature system makes little sense because the water must be stored hot. Both during production and storage, relatively high losses occur. Then it must be sensibly controlled under which conditions the heat pump heats and hydraulically connected in such a way that the buffer storage does not have to be heated by the heat pump. The system costs about €8000 extra compared to "only heat pump." Unless you have your own forest from which you can harvest yourself, wood is not exactly cheap. To recoup the extra costs, you have to wait quite a long time. In addition, there are the costs for the chimney itself, the chimney sweep, and the additional maintenance that may arise.

I honestly don't believe that. Especially since exactly this concept is also promoted by a company. Why would anyone make a mess? The water is not drained; the control/regulation mixes cold and hot water.

Therefore, I cannot understand/follow your negative aspects.

Then don't ask for opinions, just do it the way you want.

And of course it makes sense to distribute/use something like that... at least for the one who sells it. Complex system, high installation effort, prone to maintenance and malfunctions, etc.

Regardless of whether the systems are compatible or not, one must be aware that a fireplace in a modern, insulated house needs to be carefully chosen so that you don't end up building an oversized sauna. I would have liked to have a wood stove as well. We even have a small piece of private forest. But from an energy perspective, in my view, it doesn't make sense in a modern house.

Friends of ours have a water-heated fireplace in their house, which was built about 8 years ago. However, they have a gas heating system. How often it has been used over the years can be counted on one hand.

I would actually be interested in the usage behavior of homeowners with a fireplace? When, how often, and for how long does the fireplace run in a modern house without having to eventually open the windows?

Regardless of whether the systems fit together or not, one has to be aware that a fireplace in a modern well-insulated house needs to be carefully chosen so as not to build an oversized sauna. I would have liked to have a wood stove as well. We even have a small piece of private forest. But from an energy perspective, in my view, it makes no sense with a modern house.

Friends of ours have a water-fed fireplace in their house built about 8 years ago. However, they have a gas heating system. How often it has been used over the years can be counted on one hand.

I would actually be interested in the usage behavior of homeowners with a fireplace? When, how often, and how long is the fireplace running in a modern house without eventually having to open the windows?

Not a problem at all if the fireplace has the necessary heat storage capacity. On the first burn, it stays pleasantly warm. On the second, if desired, even warmer.

The problem with modern houses always arises during the transitional period. The heating is not yet active and it can get chilly. Thus, room temperatures that do not meet the WAF (Wife Acceptance Factor). Then modern man has to chop wood again and make a cozy home with a little stove for the woman :).

There is no other way, thanks to the Energy Saving Ordinance!

I would actually be interested in the usage behavior of homeowners with a fireplace? When, how often, and for how long does the fireplace run in a modern house without having to open the windows at some point?

In winter at least 3 times a week. Between 7 and 9 PM (then just let the wood burn out). Windows were never open. Status 2016.

In winter at least 3 times a week. Between 7 and 9 pm (then just let the wood burn out). Windows were never open. Status 2016.

Is your fireplace water-bearing? Do you have a combination with another system?