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basics:what_is_a_passive_house [2019/02/21 09:49] cblagojevicbasics:what_is_a_passive_house [2022/09/25 19:35] (current) wfeist
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 ====== What is a Passive House? ====== ====== What is a Passive House? ======
 +Want to see a video first? Click the video-frame: **{{ youtube>xLxwa-rwFP8?300| What is a passive house? Video by Dr. Wolfgang Feist }}**
 {{ :picopen:heating_energy_savings_diagram_e.jpg?300}} {{ :picopen:heating_energy_savings_diagram_e.jpg?300}}
  
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 Yet, a Passive House is more than just a low-energy building.\\ Yet, a Passive House is more than just a low-energy building.\\
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-  * Passive House buildings allow for heating and cooling related energy savings of up to 90% compared with typical building stock and over 75% compared with average new builds. In terms of heating oil, Passive House buildings use less than 1.5 litres per square meter of living space per year – far less than typical low-energy buildings. Similar energy savings have been demonstrated in warm climates where buildings require more energy for cooling than for heating. +  * Passive House buildings allow for heating and cooling related energy savings of up to 90% compared with typical building stock and over 75% compared with average new builds. In terms of heating oil, Passive House buildings use less than 1.5 litres per square meter of living space per year – far less than typical low-energy buildings((Of cousre you normally don't heat a passive hosue using oil. A small heat pump is a much better and cheaper solution, a ≈2.5 kW<suv>th</sub> split unit will do.)). Similar energy savings have been demonstrated in warm climates where buildings require more energy for cooling than for heating. 
  
   * Passive House buildings are also praised for their high level of comfort. They use **energy sources inside the building** such as the body heat from the residents or solar heat entering the building – making heating a lot easier.    * Passive House buildings are also praised for their high level of comfort. They use **energy sources inside the building** such as the body heat from the residents or solar heat entering the building – making heating a lot easier. 
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 ==== Measurement results ==== ==== Measurement results ====
-Measurements carried out in 114 Passive House apartments which were part of the [[http://www.cepheus.de/|CEPHEUS]] project showed average savings of approx. 90%. In other words, the Passive House is a “factor 10 house” which only uses **one tenth** of the energy used by average houses. Please click [[Basics:Energy and ecology:Primary energy – quantifying sustainability|here]] to learn about the amount of **primary energy** this translates to. The passive house concept delivers - the savings are real, there is no performance gap.+Measurements carried out in 114 Passive House apartments which were part of the CEPHEUS project showed average savings of approx. 90%; since then, lots of realized passive houses have been monitored with [[operation:operation_and_experience:measurement_results:energy_use_measurement_results|convincing results]]. In other words, the Passive House is a “factor 10 house” which only uses **one tenth** of the energy used by average houses. Please click [[Basics:Energy and ecology:Primary energy – quantifying sustainability|here]] to learn about the amount of **primary energy** this translates to. The passive house concept delivers - the savings are real, there is no performance gap.
  
 ==== Versatility ==== ==== Versatility ====
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 ===== And this is how it works ===== ===== And this is how it works =====
  
-**--> Efficiency improves comfort**+**⇒ Efficiency improves comfort**
  
 The Passive House is the world leading standard in energy-efficient construction: A Passive House requires as little as 10 percent of the energy used by typical Central European buildings – meaning an energy savings of up to 90 percent. Owners of Passive Houses are barely concerned with increasing energy prices. The Passive House is the world leading standard in energy-efficient construction: A Passive House requires as little as 10 percent of the energy used by typical Central European buildings – meaning an energy savings of up to 90 percent. Owners of Passive Houses are barely concerned with increasing energy prices.
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    * This "supply air heating" concept only works in [[planning:thermal_protection:integrated_thermal_protection|appropriately insulated buildings]] – that is in Passive Houses. In expert terms: The transmission and infiltration heating load must be less than 10 W/m² to make sure that the required heat can be provided by the supply air.\\    * This "supply air heating" concept only works in [[planning:thermal_protection:integrated_thermal_protection|appropriately insulated buildings]] – that is in Passive Houses. In expert terms: The transmission and infiltration heating load must be less than 10 W/m² to make sure that the required heat can be provided by the supply air.\\
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 __**The Passive House – the leading concept for**__\\ __**The Passive House – the leading concept for**__\\
basics/what_is_a_passive_house.1550738942.txt.gz · Last modified: 2019/02/21 09:49 by cblagojevic