Pipe route
A short run of pipe from the exhaust port on the unit to an exterior wall or rim joist, kept as short and straight as practical.
Exhaust
Central vacuum exterior exhaust venting
A central vacuum pushes its exhaust air out of the power unit. Venting that air outside keeps fine dust and motor heat out of your basement or garage.
Why vent outside
Even good filters let some very fine dust through. When the exhaust goes outdoors, that dust, along with the warm air and some of the motor noise, leaves the house. Many homeowners with allergies prefer it, and manufacturers generally recommend outdoor venting where practical. Check the manual for your model.
How it is installed
Wall vent
An exterior cap with a flap keeps out rain, wind and pests.
Muffler
An inline muffler can be added to reduce exhaust noise outside.
Garage units
If the unit is in the garage, venting outside keeps dust off your car and tools.
When venting outside is not possible
If there is no practical exterior route, the unit can exhaust indoors through its filter and muffler. We will tell you which is practical in your home. Exhaust venting can be added to most existing systems, or planned during a new-construction rough-in.
FAQ
Common questions
Should a central vacuum exhaust outdoors?
Where it is practical, yes. Outdoor venting removes fine dust and warm air from the house. Check your model's manual for the manufacturer's guidance.
Can you add an exterior exhaust to an existing system?
In most homes, yes. It usually means a short pipe run from the unit to an exterior wall and a vent cap.
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