return duct การใช้

• The air needs a way to make it to the return duct.
• Block at least half of the main air return duct.
• Hibner said the modern standard is to put cold-air return ducts diagonally opposite heat registers.
• When your furnace is operating, air is drawn into the system through cold-air return ducts.
• Well-designed systems have supply ducts for the hot air and return ducts for the cold air.
• Doing the return duct will keep that return air from cooling off excessively, thus taking more fuel to reheat it.
• That takes a whole new filter system _ one that's built in between the main return duct and the blower cabinet.
• The hot air was allowed to rise through the ducts while the heavier cold air dropped down through return ducts to the furnace.
• I did it inadvertently one summer by moving the trash can in front of the return duct while cleaning and it iced up the unit and cracked the coil, releasing all the coolant.
• Hibner said room air entering a cold-air return duct near the ceiling may be a little warmer than the air at floor level, but pulling out a little warm air doesn't significantly cool the room.
• "' Bypass humidifiers "'are connected between the heated and cold air return ducts, using the pressure difference between these ducts to cause some heated air to make a bypass through the humidifier and return to the furnace.
• Also, place them at least 10 or 12 inches away from wall and ceiling corners as shown here, but make sure they are at least three feet away from open windows and cold air or return duct openings.
• The wall inlets are connected to the power unit by tubes that can be run inside walls, or through vertical pipe chases, closets, the attic, basement, or the cold air return ducts ( if permitted by building code ).
• My house has three airconditioners ( big house ! ) and you can't hear them running unless you happen to be right under one of the air-return ducts ( which are generally not situated in main living areas ).