A passive house is a type of home that provides a comfortable interior temperature both in summer and winter, with reduced energy consumption but without a conventional heating source. These houses are energy-efficient, and their main feature is minimizing energy consumption and achieving near complete energy independence.
Opening the GaleriaIn a house like this, there is no need for traditional heating, air conditioning, or water supply systems. The home's heating is provided by the heat emitted by the people living in it, from appliances within the house, and from other alternative energy sources.
Hot water is obtained from renewable energy installations, such as heat pumps, solar panels and thermal installations.
The key elements of a passive house are: a well-built structure with no cracks or holes in the walls, a compact building shape, impeccable insulation, and technologically superior windows.
Also, in a passive house, the heat recovery ventilator or ventilation system is very important, as it provides fresh air with minimal heat loss. This is practically the "lungs" of the house. Air must circulate through at least two free spaces in the house. It is recommended that the roof be sloped to help natural ventilation of the building.
The doors should be taller to avoid obstructing the flow of hot air.
Beyond the structure and ventilation system, electricity consumption is crucial. The solar panels mounted on the roof solve part of the electricity needs, regardless of the season. An electrical system with sensors helps a lot, meaning that when leaving the room, the light turns off automatically.
Another detail that helps save energy is the orientation of the house. It should have windows facing east-south-west to capture as much sunlight and heat as possible. Leaving windows open during winter should be avoided, especially, to prevent heat loss and unnecessary consumption.
Such a house is 15-20% more expensive than a conventional one, but its performance results in approximately 85% thermal energy savings.
Passive House
