Industry Problem
Spray / paint booths exhaust warm air laden with overspray and VOCs. Discharging it wastes heat and, if recirculated carelessly, can contaminate supply air or concentrate solvents.
Exhaust Conditions
Exhaust is warm (30–80°C), contains paint particulate and flammable VOCs. Make-up air must be heated and supplied clean.
Recovery Principle & Recommended Exchanger
Use a fixed-plate exchanger (with pre-filtration) or a run-around coil so exhaust and supply never mix. Cross-flow plate for spray booths preheats make-up air. Rotary wheels are excluded—VOC and overspray would carry over to supply air. See where rotary is banned.
System Configuration
- Pre-filter exhaust before the plate core to protect it from overspray.
- Recover sensible heat to make-up air; keep VOC concentration below explosive limits (consult AHJ).
- Run-around loop where booth and recovery unit are separated.
Energy-Saving Potential
Preheating make-up air typically cuts booth heating 20–35%. See also spray-painting exhaust recovery and industrial dryer recovery.
Material & Design Considerations
Coated aluminium or stainless plates; easy-clean, removable cores; explosion-safe fan selection where VOC present.
Related Products
Plate heat exchangers · Run-around coil · Separated recovery applications
FAQ
Is rotary OK for paint booths?
No. VOC/overspray carryover makes rotary unsafe here; use plate or run-around with filtration.
Get a Paint-Booth Recovery Design
Call 15753355505 or request a quote.