Good evening everyone,
In our current rental apartment, we have a very cozy wood stove that we often sit in front of in the evenings, watching the flames. Since we are about to start building a prefabricated house with KfW 40 EE standard (timber frame construction), we naturally want to have something similar there as well.
According to online sources, the heat input from such a wood stove into a new house is much too high because the heat is released very directly and without buffering into the room.
Does anyone have any ideas on how to enjoy a wood stove’s flames in a low-energy house without it becoming overwhelming? 😀
Could a stove installed inside the chimney help?
Best regards from Passau
In our current rental apartment, we have a very cozy wood stove that we often sit in front of in the evenings, watching the flames. Since we are about to start building a prefabricated house with KfW 40 EE standard (timber frame construction), we naturally want to have something similar there as well.
According to online sources, the heat input from such a wood stove into a new house is much too high because the heat is released very directly and without buffering into the room.
Does anyone have any ideas on how to enjoy a wood stove’s flames in a low-energy house without it becoming overwhelming? 😀
Could a stove installed inside the chimney help?
Best regards from Passau
SandyBlack schrieb:
Hello everyone,
Since my question fits well here, I didn’t want to start a new thread.
So far, the discussion has always been about the KfW 40 standard.
If you build with solid walls approximately 36.5 cm (14 inches) thick to meet the KfW 70 or the Energy Saving Ordinance 2016 standard (which I understand to be the same?), can you plan for a fireplace (around 5 kW) without worrying about overheating the room? The heating system is an air-to-water heat pump (underfloor heating).
The open space (living room, dining area, kitchen) where the fireplace is located is roughly 60 m² (650 sq ft).
Best regards If you have a concrete ceiling, then definitely yes.
A 60 m² (650 sq ft) reinforced concrete slab with a thickness of 20 cm (8 inches) weighs about 30 tons.
So it can absorb nearly 50 kWh of heat with a 6°C (11°F) temperature difference.
motorradsilke schrieb:
We have a fireplace in our KfW55 house. We keep the heating set so that the entire house stays at around 20 to 21 degrees Celsius (68 to 70°F) except for the bathroom. In the evenings, we light the fireplace, which raises the temperature in the main living area to a comfortable 25 to 26 degrees Celsius (77 to 79°F).
A gas fireplace or a heat transfer system is absolutely not an option, because the radiant heat from the fireplace is missing, and that really contributes to the atmosphere. 25 degrees Celsius (77°F) comfortable? I don’t have that inside the house in summer. Way too warm.
It’s crazy how different comfort temperatures can be.
haydee schrieb:
25 degrees comfortable?If you’re just walking around the house in your underwear, it definitely is. 😉 Sometimes we even have that in winter without the wood stove when the sun shines inside for hours. Wonderful 😀
D
Deliverer25 Feb 2022 10:50Despite all the romantic ideas, I always recommend doing a full cost analysis first.
What is the cost per square meter for the new build? How many square meters does the stove occupy? Possibly even across multiple floors? How much usable floor space around it must remain free and cannot be furnished? Where will the wood be stored? What does the chimney sweep cost? What are the real expenses for the chimney, including additional roofer and metalworker costs? Did I plan for hardwood flooring in the end?
If you add all this up and then decide that three cozy evenings a year are really worth $20,000, only then should you continue considering it.
What is the cost per square meter for the new build? How many square meters does the stove occupy? Possibly even across multiple floors? How much usable floor space around it must remain free and cannot be furnished? Where will the wood be stored? What does the chimney sweep cost? What are the real expenses for the chimney, including additional roofer and metalworker costs? Did I plan for hardwood flooring in the end?
If you add all this up and then decide that three cozy evenings a year are really worth $20,000, only then should you continue considering it.
M
motorradsilke25 Feb 2022 17:07haydee schrieb:
25 degrees Celsius (77°F) comfortable? I don’t have that inside the house in summer. Much too warm.
It’s always surprising how different comfort temperatures can be.We love the warmth. It can easily be even warmer. We don’t use shading in summer either; we keep everything open.
And we’re currently on a "winter holiday" in Thailand. It’s around 30 degrees Celsius (86°F) during the day, which is great.