Asked by: Gabriela Kilb
asked in category: General Last Updated: 4th May, 2020

What makes a house passive?

Passive house (German: Passivhaus) is a voluntary standard for energy efficiency in a building , which reduces the building's ecological footprint. It results in ultra-low energy buildings that require little energy for space heating or cooling.

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Besides, what makes up a passive house?

A passive house is one in which a comfortable interior climate can be maintained without active heating and cooling systems [source: Passivhaus Institut]. As fresh, cold air enters the house through the ventilation system, it is heated by the warm air it passes on its way out.

Likewise, are passive houses worth it? Thanks to their minimal energy consumption, Passive House buildings are worth the investment! And if in doubt remember: Passive House buildings require around 90% less heating energy than conventional buildings, meaning that they save annually on operating costs after a slightly larger initial investment!

Simply so, how does a passive house work?

The strategy of a Passive House is to reuse "free" heat to heat the home. The stale air leaving the house is carrying the "free" heat. It goes through the heat recovery ventilator, and transfers the heat, to the incoming fresh air, before it leaves the building.

Does a passive house need heating?

The principle behind the passive house standard is that if a building is extremely well insulated, airtight and naturally effective at capturing the sun's heat , it doesn't need conventional central heating . Of course many passive house owners do put in central heating as a back-up — but some don't.

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