What is Passive House

• Developed in Germany in 1988 by Dr. Wolfgang Feist
• Combines high levels of comfort with very low energy consumption
• Economic to build
• Designed to:
  • Minimise heat loss
  • Maximise internal gains
• No traditional central heating system required
• Can be applied to any building type

Passive House Characteristics

• Super Insulated
• Air-Tight
• High performance windows
• Comfortable
• MVHR
• Cold Bridge Free
• Orientated South
• High quality workmanship

How does Passive House work

• Heating makes up 75% of your energy bill
• Passive House aims to reduce this as much as possible

Based on simple building physics

• Heat losses through walls, floors, roofs, thermal bridges and windows are minimised
• Air tightness means no uncontrolled heat leaking to outside
• MVHR means that the fresh air coming into the house is preheated so no ventilation heat loss
• Windows to the south mean more solar gain
• Internal heat gains from people and appliances are retained in the house

Common Features in a Passive House

• Clean fresh air
• Little or no heating costs
• No Drafts
• Consistent comfortable temperatures no matter what the weather