Hello everyone,
like most of you, we are currently planning to buy our own home and therefore have ongoing questions about house/apartment construction. We want to purchase a top-floor apartment (4 rooms) built to KfW55 standard. The construction specifications for the room ventilation state the following:
"The supply air for room ventilation (outside air inlets) is provided through the window units. Exhaust air is removed by electric fans in the bathrooms, using both a basic ventilation mode and a demand-controlled ventilation mode. The kitchens do not have exhaust air, as this would interfere with the ventilation concept, so as part of the on-site kitchen planning, recirculation hoods may need to be considered."
I haven’t found much information online about this, except that this type of ventilation with outside air inlets in the window units is typically used in renovations where there is not enough space for a mechanical ventilation system. Currently, in our apartment, we have a decentralized ventilation system with heat recovery. Are these systems comparable? How do these types differ?
Thank you very much and best regards
like most of you, we are currently planning to buy our own home and therefore have ongoing questions about house/apartment construction. We want to purchase a top-floor apartment (4 rooms) built to KfW55 standard. The construction specifications for the room ventilation state the following:
"The supply air for room ventilation (outside air inlets) is provided through the window units. Exhaust air is removed by electric fans in the bathrooms, using both a basic ventilation mode and a demand-controlled ventilation mode. The kitchens do not have exhaust air, as this would interfere with the ventilation concept, so as part of the on-site kitchen planning, recirculation hoods may need to be considered."
I haven’t found much information online about this, except that this type of ventilation with outside air inlets in the window units is typically used in renovations where there is not enough space for a mechanical ventilation system. Currently, in our apartment, we have a decentralized ventilation system with heat recovery. Are these systems comparable? How do these types differ?
Thank you very much and best regards
D
Doc.Schnaggls2 Jun 2014 14:25€uro schrieb:
It’s usually worth taking a close look at the actual summer heat protection! Whenever I see “attic apartment,” all my warning signals go off immediately!
If there are problems, simply ask the provider about a contractually guaranteed maximum room temperature during the summer heat period. @€uro:
With all due respect for your expertise, you’re really exaggerating the problem here...
We currently live in our 2.5-room attic apartment (built in 2001), which met the low-energy standard at the time.
If you use some common sense and on days when the forecast predicts temperatures above 30°C (86°F), just close the (internally mounted) thermal blinds on the roof windows and ventilate briefly in the morning, it can actually feel quite refreshing to re-enter the apartment in the evening...
A properly insulated attic apartment by today’s standards is definitely no longer a “hotbox”...
@Christian 144:
I’m not a fan of this concept for a new build. As mentioned above, it’s a cost-effective solution, but for me the drawbacks (cold drafts in winter, no heat recovery...) clearly outweigh the advantages.
If you are already used to a central ventilation system with heat recovery, in my opinion, it would be a significant step backwards...
Regards,
Dirk
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