The Enervex MFD-S Manual Fireplace Damper provides a dependable, energy-conscious solution for reducing heat loss and stopping backdrafts in solid-fuel fireplaces when idle. Mounted at the chimney top, this gravity-activated damper enhances energy efficiency while helping maintain a comfortable indoor environment.
Purpose-built for round chimneys, the MFD-S is a smart replacement for worn zero-clearance fireplace dampers and works seamlessly with or without an Enervex chimney fan. Its simple pull-chain operation delivers easy, power-free functionality for consistent, long-term performance.
Built to last, the MFD-S handles temperatures up to 1400°F (760°C) and fits most standard round chimneys — making it a versatile and reliable upgrade for any wood-burning fireplace.
Key Features:
- Conserves energy by sealing off the chimney when not in use
- User-friendly pull-chain for effortless operation
- Manual, power-free functionality for reliable performance
- Fits most standard round chimneys
- Durable top-mount design rated up to 1400°F (760°C)
| Material | Stainless Steel |
| Available Sizes | 6 |
| Warranty | 2-year Factory Warranty |
