Is it good to close vents in unused rooms?

Despite that logic, it's actually a common misconception that closing vents in unused rooms saves energy. In fact, it can actually waste more energy than operating your system normally does. The added pressure from closing a vent can cause air leaks in your system, causing long-term and unnecessary energy waste.

What vents to close in winter?

In the winter, open the bottom registers and close the top. In summer, close the bottom and open the top registers. This draws cool air off the floor when it's cold and warm air off the ceiling when it's hot.
  • Do all fires produce carbon monoxide?

    Carbon monoxide is produced by the incomplete combustion of carbon-containing fuels, such as gas (domestic or bottled), coal, oil, coke and wood. Gas stoves, fires, heating boilers, gas-powered water heaters, paraffin heaters, and solid fuel-powered water heaters are all potential sources of carbon monoxide.
  • How do you prevent carbon monoxide poisoning?

    Start with these eight tips to help keep your home and family safe from carbon monoxide.
    1. Know the risks of carbon monoxide.
    2. Keep your vents clear.
    3. Do not run engines in a closed area.
    4. Schedule regular maintenance.
    5. Keep fireplaces clean and well vented.
    6. Install enough CO alarms.
    7. Maintain your CO alarms regularly.
  • Can carbon monoxide cause long term effects?

    Other sequelae may include intellectual deterioration, memory impairment, and changes in emotional stability. It has been generally assumed that such effects only occur after severe poisoning. Short term exposure to high concentrations of carbon monoxide certainly produces changes in intellectual functioning.

Updated: 2nd October 2019

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