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2. Should You Close Vents In Unused Rooms During Winter ... - AOL

   www.aol.com/lifestyle/close-vents-unused-rooms...

   As the return removes the cool or hot air, Martin says, the supply vents replace this air with the opposite of what it is removing. In most homes, the furnace (forced air) and air conditioner ...

3. The One Winter Maintenance Task Experts Say You Should ... - AOL

   www.aol.com/one-winter-maintenance-task-experts...

   Here's all they had to say on the one winter home maintenance tasks they don't want you forget. Meet the Experts. Glenn Gault is the CEO of Gault Heating & Cooling.

4. What should you set your heat to in the winter? Avoid ... - AOL

   www.aol.com/set-heat-winter-avoid-thermostat...

   Many homeowners may be tempted to rely on fireplaces, space heaters, electric blankets and wood-burning stoves to keep warm in the winter. A space heater operates at a hardware store in 2022 in ...

5. Register (air and heating) - Wikipedia

   en.wikipedia.org/wiki/Register_(air_and_heating)

   During winter months, for example, an air conditioning register can be closed to prevent cold air from being pulled from the room. This allows the hot air to mix more completely with the cold air in the room, improving the efficiency of the HVAC system. [7] (The return should be efficient enough to draw off the cooler air.) [10] [11]

6. Air changes per hour - Wikipedia

   en.wikipedia.org/wiki/Air_changes_per_hour

   Air changes per hour, abbreviated ACPH or ACH, or air change rate is the number of times that the total air volume in a room or space is completely removed and replaced in an hour. If the air in the space is either uniform or perfectly mixed, air changes per hour is a measure of how many times the air within a defined space is replaced each hour.

7. Ventilation (architecture) - Wikipedia

   en.wikipedia.org/wiki/Ventilation_(architecture)

   During the winter, ACH may range from 0.50 to 0.41 in a tightly air-sealed house to 1.11 to 1.47 in a loosely air-sealed house. [12] ASHRAE now recommends ventilation rates dependent upon floor area, as a revision to the 62-2001 standard, in which the minimum ACH was 0.35, but no less than 15 CFM/person (7.1 L/s/person).