Experiences with concrete core activation

With an open floor plan, you can also heat the house with just the masonry heater. That will require a corresponding amount of work. How should the hot water be prepared? Is a ventilation system planned? What does heating demand near passive house mean? Do you want to implement a passive house concept? Or is the building envelope simply so good that it results in a low heating demand? Are tiles and underfloor heating installed? There are also pellet-wood combo stoves. Then you would have underfloor heating and hot water covered and can also burn wood if desired. However, you also need space for a large buffer and possibly solar thermal for hot water preparation in summer. Pellets can then be filled in bags or automatically blown in. Overall a high investment. With a heating concept without underfloor heating, I would reconsider the tiles, as they always feel colder than wood at the same surface temperature. You could also combine the masonry heater with a domestic hot water heat pump and ventilation system. That saves the underfloor heating and allows you to plan a nice masonry heater with a bench. But retrofitting to a water-based heating concept later is then not so easy. And depending on the size of the masonry heater and house, you have to fire up twice a day in winter. Looking forward to seeing what you implement...