ᐅ Which Heating System Is Best for a New Build (Prefab House)
Created on: 8 Nov 2016 13:05
B
BFResident
Hello dear community,
my wife and I want to take the plunge into the adventure of building a house. We have decided on the prefabricated house option. The house should have between 130 and 150 square meters (1400 and 1600 square feet) of living space. We are at the very beginning; nothing is finalized yet, no building plot, etc. The entire new development area in the town will only be developed next year.
However, we want to benefit from others’ experiences as early as possible, hence this post.
Among many other things to consider, I think the heating system is one of the most important points. Almost all prefab house providers advertise the KfW40 or 40+ standard house with an air-to-air heat pump and controlled ventilation with heat recovery (fresh air heat technology). But I am also considering the KfW55 option with a pellet heating system combined with a hydronic wood-burning stove in the living room and a buffer tank. I still have no idea about the costs.
At the moment, our main question is: Is an air-to-air heat pump sufficient for the Black Forest climate at all? How about efficiency? Do you have experience with controlled ventilation and indoor climate? I think there is a wealth of experience here.
I have already read some posts on similar questions but please don’t be offended if I am looking for individual answers.
Thanks in advance for reading and responding! Feel free to ask if you have any questions.
my wife and I want to take the plunge into the adventure of building a house. We have decided on the prefabricated house option. The house should have between 130 and 150 square meters (1400 and 1600 square feet) of living space. We are at the very beginning; nothing is finalized yet, no building plot, etc. The entire new development area in the town will only be developed next year.
However, we want to benefit from others’ experiences as early as possible, hence this post.
Among many other things to consider, I think the heating system is one of the most important points. Almost all prefab house providers advertise the KfW40 or 40+ standard house with an air-to-air heat pump and controlled ventilation with heat recovery (fresh air heat technology). But I am also considering the KfW55 option with a pellet heating system combined with a hydronic wood-burning stove in the living room and a buffer tank. I still have no idea about the costs.
At the moment, our main question is: Is an air-to-air heat pump sufficient for the Black Forest climate at all? How about efficiency? Do you have experience with controlled ventilation and indoor climate? I think there is a wealth of experience here.
I have already read some posts on similar questions but please don’t be offended if I am looking for individual answers.
Thanks in advance for reading and responding! Feel free to ask if you have any questions.
M
MichaelKon8 Nov 2016 15:41BeHaElJa schrieb:
Air-to-air heat pumps are very interesting for the supplier because they are relatively inexpensive to install.Thank you, I have researched that by now as well. The question is always what the sensible alternative is. But I don’t want to hijack this thread.
M
MichaelKon8 Nov 2016 16:12In my case, the chimney/ceramic stove (not water-based) would be an addition to the underfloor heating system.
We signed the purchase contract for our house last week. All five townhouse providers had planned an air-to-water heat pump. In the end, we bought a KfW 40+ house with photovoltaic panels, controlled ventilation with heat recovery, and no basement from a smaller supplier in solid wood construction in Upper Swabia, whose overall concept completely convinced us — including the price. The heating system will use geothermal baskets and a corresponding heat pump without an auxiliary heating element. Air-to-air or air-to-water heat pumps have the lowest efficiency when there is the highest heating demand, and there are very different experiences reported in the forum regarding energy consumption and the coefficient of performance (COP). I would definitely not consider it without auxiliary heating, especially not in cold regions.
FHW6Neu schrieb:
a KfW 40+ house with photovoltaic system, controlled indoor ventilation with heat recovery,For KfW 40+, you still need the (not cost-effective) battery storage and the management/virtualization solution. Check your documents again, because if these are not included, you will have to budget an additional €8,000 (about $8,800), or alternatively expect €5,000 (about $5,500) less in subsidies.
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