What is a passive house?
A passive house is an extremely thermally efficient building which allows a comfortable indoor temperature of 20°C to be maintained all year around while only requiring minimal space heating 2-3 months of the year.
A passive house is an energy performance standard, similar to the fuel consumption in a car, it is simply a very strict energy consumption goal for houses. This requirement has been set by the Passive House Institute in Darmstadt and sets the requirements listed to the right.
The passive house standard does not take into account the energy needed to build a house or how natural/sustainable the materials from which its made are. See our ecology and philosophy section to read more about this here