Air Make-Up Units for Georgia Paint Booths and Finishing Rooms
Every cubic foot a paint booth exhausts has to come back into the building from somewhere. An air make-up unit decides where, how clean and how warm. Without one, the booth pulls dirty air through door gaps, gas appliances backdraft and the booth never reaches its design airflow. Double D Mechanical installs, replaces and connects air make-up units for Georgia finishing operations.
Discuss your installationThe Air Side of a New Finishing Department
When a plant like the Virginia Transformer facility in Rincon adds coating capacity, the booths and blast equipment get the attention, but the air they consume is just as much a design item. A large booth or blast room can exhaust enough air to depressurize an entire building. Planning the AMU alongside the booth keeps air entering where it is filtered and controlled.
Direct-Fired, Indirect-Fired and Unheated
Make-up units come in a few common types.
- Direct-fired gas units heat air with the burner in the airstream, efficient and common on booths
- Indirect-fired units keep combustion products out of the supply air
- Unheated filtered supply works where heating is not needed for process or comfort
- Booth-integrated AMUs combine supply and exhaust controls with cure-cycle heat
Placement, Filtration and Duct
AMUs sit on the roof, on a platform or on the floor next to the booth. Intake location matters: it should be away from exhaust stacks, truck docks and dusty yards. Filtration at the intake protects the booth's ceiling filters. Duct from the unit to the booth plenum is sized for the air volume with minimal turns. We plan placement and duct together with the booth layout.
Matching Supply to Exhaust
A booth is designed to run slightly negative or slightly positive depending on its type. The AMU supply has to be set relative to exhaust to achieve that. Commissioning includes adjusting dampers and fan speeds and confirming booth pressure, so the booth contains overspray without pulling unfiltered air through its doors.
Planning a booth or oven project in Georgia
Crews mobilize from Houston; Georgia is roughly 700 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Georgia is concentrated around Atlanta, Savannah, Augusta, and Columbus. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include automotive assembly and EV, aerospace, transportation equipment, and heavy machinery.
Hot, humid summers and mild winters put the emphasis on make-up air cooling or tempering, filter change schedules and keeping intake away from loading doors.
Frequently asked questions
Does every paint booth need an air make-up unit?
Any booth exhausting air outside needs a planned path for replacement air. In most cases, a dedicated AMU is the cleanest way to provide it.
Can one AMU serve two booths?
Sometimes, with proper controls and dampers. Independent units make balancing simpler when booths run on different schedules.
Where should the AMU intake be?
Away from exhaust stacks, combustion vents, dusty areas and truck traffic to avoid pulling contaminants into the booth.
Can you replace an old AMU without replacing the booth?
Yes. AMU replacements are common and are matched to the existing booth's exhaust volume and controls.
What maintenance does an AMU need?
Filter changes, burner service, belt and bearing checks, damper operation checks and control calibration.