A passive house is a house that- Needs minimum heating requirements- Needs 90% less engery than a old bilding- Needs 75% less engery than a new bilding

These are all buildings at least 25% less energy than the thermal protection ordinance in 1995 allowed.

Passiv house Low energy house

90% less engery than an old house

high-efficiency heating system

75% less engery than a modern House

new modern ventilation technology

Environmental 4000kg less CO2 emissions than conventional buildings

2-7 liters of heating oil per square meter per year

Independent of the energy companies

around 1 ton of CO2 per year less

Passive house Low-energy house

Mildew and mites education possible

Mildew and mites education possible

Increased construction costs Additional costs for high-tech heating system

Power failure causes shutdown of the ventilation system

Fees by more expensive air-conditioning, artificial ventilation of the house "

Motivation of the client necessary Odors must be exhausted through an air conditioning