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What to do instead: Instead of closing vents, adjust your thermostat as needed. If your home has a zoned HVAC system, use that to manage the temperature in different parts of the house. If not ...
2. Ignoring Air Leaks. Small drafts from windows and doors can lead to significant energy loss from escaping air that pushes your AC system to work harder and longer. To prevent this, seal any ...
Here’s what homeowners need to know.
Cross-breezes work when two windows are opposite of each other. Cross ventilation is a natural phenomenon where wind, fresh air or a breeze enters upon an opening, such as a window, and flows directly through the space and exits through an opening on the opposite side of the building (where the air pressure is lower).
In typical modern U.S. residences, about one-third of the HVAC energy consumption is due to infiltration. Another third is to ground-contact, and the remainder is to heat losses and gains through windows, walls, and other thermal loads. As such, reducing infiltration can yield significant energy savings, with rapid payback.
It has been theorized that in some cases the negative pressure that an attic fan produces in the attic can cause conditioned air from living spaces to be pulled into the attic through cracks and lighting fixtures. This loss of conditioned air can negate the energy conservation gains that might be expected from forced cooling of the attic with a ...
Professor Cath Noakes said while people are taking steps to cut costs, they are also reducing ventilation and adding pollutants to indoor air.
A solar chimney – often referred to as a thermal chimney – is a way of improving the natural ventilation of buildings by using convection of air heated by passive solar energy. A simple description of a solar chimney is that of a vertical shaft utilizing solar energy to enhance the natural stack ventilation through a building.