KitchenAid over-the-range microwave venting clearance notice — owners of KitchenAid KMHC and KMHS over-the-range microwaves should verify installation clearances meet specifications to prevent fire hazards and ensure proper ventilation.
Why this matters
Over-the-range microwaves serve dual purpose as microwave ovens and range hood ventilation. Installation clearances above the cooktop and around the microwave ensure both functions operate safely. Insufficient clearance creates fire risk from cooking flames reaching the microwave underside and reduces ventilation effectiveness.
Clearance requirements
- Above cooktop: Minimum 30 inches between cooktop surface and bottom of microwave
- Above gas cooktop: Check specific model for any additional clearance requirements
- Side clearances: Per installation manual — typically snug fit in cabinet opening
- Venting path: Must be properly configured for your installation (vented vs recirculating)
Common installation issues
- Microwave installed too close to cooktop (flames reaching underside)
- Venting path incorrectly configured at installation
- Recirculation filter missing or not replaced
- External venting path blocked or collapsed
When to call a technician
If you suspect installation issues or are upgrading to a new OTR microwave, our KitchenAid installation service verifies clearances and proper venting configuration. Proper installation is essential for both safety and warranty compliance.