Furnace Outside Air Intake

Baseball is like church.

Furnace outside air intake.

That is the only thing that is passing between the two units. Through mechanical ventilation devices such as bathroom or kitchen fans that vent to the outdoors or heating ventilation and air. However this does not mean that your home does not need a fresh air intake just because you have a high efficiency furnace. It is much more efficient to use outside air for combustion air.

Typically the fresh air intake will be located in your attic or ducted to the return side of the home s central air handler. Locate a spot for the fresh air intake hood on the outside of the home. Keep the intake hood away from exhaust vents dryer vents and furnace vents. Outdoor air including fine particles from wildfire smoke can enter your home in a few ways.

To keep smoky air outside close the intake using the damper. You don t want to bring any of those exhaust gases back into the home heating system. Since high efficiency furnaces draw air directly from outside the furnace itself does not require a fresh air intake in order to replace inside air that otherwise would have been drawn from the room the furnace is located in. That air is replaced by cold outside air that will then need to be heated.

Unfortunately the fresh air intake you have described is the second type and does not provide direct combustion air to the furnace room as it is directly connected to the return air plenum for. Through open windows and doors which is known as natural ventilation. Many attend but few understand. Ways that outdoor air can enter a home.

The air that is surrounding your outside unit is just outside air and the air coming from your inside unit is inside air. But during a wildfire they can pour unhealthy air into your home s interiors. If return air comes in at the bottom it is an updraft or upflow furnace. How your ac unit works.

If your furnace draws combustion air from inside the house you are using air that you have already heated. Usually these small filtered vents help improve air quality since the air outside is typically fresher than the air outside. The indoor portion of your unit has an air conditioner return air intake usually located on the ceiling.