![]() Exhaust air is collected from kitchens and baths, passes through the heat exchanger and then is exhausted to the outside. Outside air is drawn in, passes through the HRV and is distributed to living areas. The system offers a supply of fresh, filtered air. There should be no unnecessary gaps in the structure, allowing airtightness in the building’s envelope and enabling a more energy efficient home.Īn HRV or heat recovery ventilator is a fresh air system safeguarding warmth (or coolness) in the home. ![]() High-performance windows minimize energy loss and help maintain a comfortable temperature inside. Triple-glazed windows feature better performance and low U-value or heat transfer rate. Any heat exchange with the exterior is minimized through the application of high-quality material such as sheep’s wool or cellulose insulation. Passive House uses superinsulation, a high-performance insulation with lower thermal conductivity. This principle decreases the need for traditional heating and cooling. Walls, floors and ceilings should be tight and well-insulated, to avoid cold air entering and warm air escaping. While every home is unique-some requiring more solar heat gain than others-correct solar orientation may aid in heating the home in winter, while lessening the sun’s impact on the home in summer.īuildings designed to the rigorous Passive House standard have a low percentage of air leakage. Photo: Pixabay The position of a home on a lot in relationship to the sun’s path can be a consideration when siting a home, especially a Passive House. These airtight homes use warmth generated from humans and equipment as well as solar gain to heat interiors. ![]() Buildings designed to the rigorous Passive House standard have a low percentage of air leakage. Passive Houses sustain a consistent temperature without traditional heating and cooling systems, and typically use up to 90% less energy than conventional homes. Today, Passive House is a widely accepted Green Building standard for both new construction and refurbishments across the world. Referred to as “Passivhaus” in German, the standard was born in 1988 when Swedish structural engineer Bo Adamson and German physicist Wolfgang Feist started the conversation, only for their theory to be further expanded by additional research and funding from Hesse, a state in central Germany. Passive House is a voluntary construction standard that focuses on energy efficiency to reduce a building’s carbon footprint. ![]()
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