ᐅ Which Heating System Is Best for a New Build (Prefab House)
Created on: 8 Nov 2016 13:05
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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.
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BFResident9 Nov 2016 11:30We don’t have gas available here, so that option is off the table. In general, I prefer not to use any external fuels (gas, wood, oil). However, if a house with higher insulation standards (KfW40) turns out to be disproportionately more expensive compared to a KfW55, I might have to reconsider. The question regarding the geothermal collectors is whether they only work effectively with a KfW40 house or if their efficiency would be sufficient for a KfW55 as well...
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MichaelKon9 Nov 2016 12:12BFResident schrieb:
Thanks. Yes, that would sometimes be helpful. We don’t have gas here, so that option is out. In general, I prefer not to rely on external fuels like gas, wood, or oil. However, if a house with better insulation (KfW40) becomes disproportionately more expensive compared to KfW55, I might have to reconsider. The question with geothermal baskets would be whether they only work with a KfW40 house or if their efficiency would also be sufficient for a KfW55...Yes, this concerns me a lot as well. Above all, if possible, I want to avoid an air-source heat pump. Gas would be nice but would pose a disadvantage for photovoltaic (domestic hot water) on the roof, especially since the idea of a relatively self-sufficient house is becoming increasingly attractive given current regulations. I watched a one-hour video about heat pumps and ventilation systems—very interesting. Still, it would be really fascinating for me to talk to someone who chose to use gas despite this.
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BFResident9 Nov 2016 12:20MichaelKon schrieb:
Yes, that concerns me a lot as well. Above all, I would like to avoid an air source heat pump if possible. Gas would be nice, but it has the disadvantage of requiring photovoltaic panels (solar panels) on the roof for domestic hot water... especially since the idea of a relatively self-sufficient house is becoming more attractive, particularly considering the current regulations. I watched a one-hour video about heat pumps and ventilation systems... very interesting. Still, it would be very interesting for me to talk to someone who decided to go with gas. Could you share the link to the video? Then I can watch it too... Once I have gathered all the key details about the house, I’ll consult a heating engineer and get some advice. Let’s see what they think.
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MichaelKon9 Nov 2016 12:37BFResident schrieb:
Can you post the link to the video? Then I’ll take a look at it too... As soon as I have all the key details about the house, I’ll visit a heating engineer to get some advice. Let’s see what they have to say.PM
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Painkiller10 Nov 2016 08:42I think the video would definitely be interesting for others as well
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