Hello,
This is about my parents’ house. It was built in the 1960s and is very well maintained. A few years ago, my parents had additional seals installed on the double-glazed windows, and the roller shutter boxes were insulated. For the roof, my father added a layer of mineral wool, I believe with a membrane and then drywall, but I’m not completely sure about the details. The whole house has radiators; there is no underfloor heating. The house is divided into two apartments: the ground floor is rented out, and my parents live on the first floor.
My father has been pestering me for years about the heating system. At the moment, they heat with oil. I estimate the heating system is about 15 years old, maybe a bit older. It works perfectly. My father always says that eventually it will need to be replaced anyway, and he’s not sure if he should start now because he could get good subsidies. If he waits until it breaks down, he’s uncertain whether subsidies will still be available. Would you replace a heating system that’s actually working fine now? I’m skeptical about that. With the current energy crisis, he’s even more eager to act.
The second question is what type of heating to choose now or later. Heat pumps don’t work that well with radiators, right? I have read that it’s possible to retrofit ceiling heating and then cover the ceiling with drywall. Does anyone have experience with this? Gas isn’t connected to the property anyway, and I would hesitate to consider it at the moment. Pellets, well, they are getting more expensive as well. It should also be noted that the orientation is not ideal for solar thermal or photovoltaic systems, and there are large trees casting shadows on the roof. If installing a new heating system, would solar thermal or photovoltaic panels be mandatory?
Many questions, maybe someone can give an assessment.
Best regards,
Tobi
This is about my parents’ house. It was built in the 1960s and is very well maintained. A few years ago, my parents had additional seals installed on the double-glazed windows, and the roller shutter boxes were insulated. For the roof, my father added a layer of mineral wool, I believe with a membrane and then drywall, but I’m not completely sure about the details. The whole house has radiators; there is no underfloor heating. The house is divided into two apartments: the ground floor is rented out, and my parents live on the first floor.
My father has been pestering me for years about the heating system. At the moment, they heat with oil. I estimate the heating system is about 15 years old, maybe a bit older. It works perfectly. My father always says that eventually it will need to be replaced anyway, and he’s not sure if he should start now because he could get good subsidies. If he waits until it breaks down, he’s uncertain whether subsidies will still be available. Would you replace a heating system that’s actually working fine now? I’m skeptical about that. With the current energy crisis, he’s even more eager to act.
The second question is what type of heating to choose now or later. Heat pumps don’t work that well with radiators, right? I have read that it’s possible to retrofit ceiling heating and then cover the ceiling with drywall. Does anyone have experience with this? Gas isn’t connected to the property anyway, and I would hesitate to consider it at the moment. Pellets, well, they are getting more expensive as well. It should also be noted that the orientation is not ideal for solar thermal or photovoltaic systems, and there are large trees casting shadows on the roof. If installing a new heating system, would solar thermal or photovoltaic panels be mandatory?
Many questions, maybe someone can give an assessment.
Best regards,
Tobi
driver55 schrieb:
Room temperature is the key factor… the return flow doesn’t really matter.
At 7°C (45°F) it's 38 and at -18°C (0°F) not 50 😀
I have to go to the pool now… to cool down…Ah sorry. 22°C (72°F) room temperature.Yes, the curve is flat. The heating system’s performance drops sharply as the supply temperature decreases. On top of that, there are the large internal window sills.