The Enervex MFD-S Manual Fireplace Damper helps reduce heat loss and block backdrafts in solid-fuel fireplaces when they are not in use. Designed for chimney-top installation, this gravity-activated, manually operated damper is a simple yet highly effective way to enhance your home’s energy efficiency and comfort.
Perfect for round chimney applications, the MFD-S serves as an ideal replacement for aging zero-clearance dampers and works seamlessly with or without an Enervex chimney fan. Its pull-chain and handle system allows for smooth, user-friendly operation—no electricity required.
Crafted for durability and performance, the MFD-S can withstand temperatures up to 1400°F (760°C) and fits most standard round chimneys, making it a reliable and practical choice for wood-burning fireplace setups.
Features:
- Helps save energy by keeping heat inside when the fireplace is off
- Pull-chain mechanism for easy manual operation
- No power needed – dependable and straightforward design
- Fits most standard round chimneys
- Chimney-top installation with high-temperature rating up to 1400°F (760°C)
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| Material | Stainless Steel |
| Available Sizes | 6 |
| Warranty | 2-year Factory Warranty |
