ᐅ Suitable Heating Concept for a KfW 40 Energy-Efficient House?
Created on: 30 Nov 2024 18:20
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Newbee-BW
Hello everyone,
I am in the initial phase of planning a 75 sqm (800 sq ft) bungalow without a basement. I have an offer for a KfW 40 energy-efficient house equipped with an air-to-water heat pump Vaillant aroTherm plus uniTower with VWL 105/6, a central ventilation system with heat recovery, and a 190-liter (50-gallon) hot water storage tank. Additionally, a photovoltaic system with 7.9 kWp and a battery storage of 5.24 kWh would be installed.
The house is planned only for me, with a maximum of one additional person. I work a lot from home, and my comfort temperature is around 22–23°C (72–73°F). I would prefer a system that requires little effort or adjustments regarding settings, etc.
From your perspective, does this offer make sense, or would a different heating system be more advisable?
Good luck
I am in the initial phase of planning a 75 sqm (800 sq ft) bungalow without a basement. I have an offer for a KfW 40 energy-efficient house equipped with an air-to-water heat pump Vaillant aroTherm plus uniTower with VWL 105/6, a central ventilation system with heat recovery, and a 190-liter (50-gallon) hot water storage tank. Additionally, a photovoltaic system with 7.9 kWp and a battery storage of 5.24 kWh would be installed.
The house is planned only for me, with a maximum of one additional person. I work a lot from home, and my comfort temperature is around 22–23°C (72–73°F). I would prefer a system that requires little effort or adjustments regarding settings, etc.
From your perspective, does this offer make sense, or would a different heating system be more advisable?
Good luck
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Newbee-BW1 Dec 2024 10:27@ypg thank you very much for the suggestion, I will do that.
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Newbee-BW1 Dec 2024 10:34I cannot find the questionnaire in the building planning subforum. Is there a link available here? Thank you.
Newbee-BW schrieb:
I can't find the questionnaire in the Building Planning subforum. Is there a link for it here? ThanksYes, it's in the wrong category (it’s in the Floor Plan forum), but of course you can use it just like that so people can get to know you, your needs, and your property better.https://www.hausbau-forum.de/threads/grundriss-planung-unbedingt-vor-beitrag-erstellung-lesen.11714/
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nordanney1 Dec 2024 11:09Newbee-BW schrieb:
If I have an architect handle the planning (services phases 1–3), will topics like heating, photovoltaics, etc., be covered during that process? Yes and no. The architect will design the house but is not necessarily a technical expert. You need to communicate your specific requirements. For example, KfW55 standard combined with an air-to-air heat pump is rather unsuitable, as is a passive house with a gas heating system. However, plans can still be made without much sense.
First, design the house, then choose the appropriate technology. Since you apparently don’t even know how energy-efficient the house should be, you definitely can’t plan the heating system in advance.
Close this thread and focus on planning your house. Afterwards, we can assist you with the technical systems.
I don’t want to hide my curiosity and will explicitly ask again if you understood the thread about the questionnaire? If you focus more on the construction method, heating, or carport instead of working on your spatial requirements and the design, you won’t achieve your desired house.
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Newbee-BW1 Dec 2024 21:26Yes, I understand. However, I will need a bit of time since there are a few points I haven’t thought about in detail yet, and I want to bring my floor plan drafts to a reasonably presentable stage. It will take a few days. I have also been reading on the elephant’s website and learned a lot more. This forum is really great too—it's wonderful to have a place where people can exchange ideas and offer support!
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