Behind a crackling fire's warm and cozy ambiance is the damper that controls the airflow in your fireplace. When open, it allows oxygen to enter the firebox, fueling the flames while smoke and exhaust vent out the chimney. When closed, it creates an airtight seal, preventing heated air from escaping up the chimney and keeping cold drafts out. In addition to damper repair, Horizon installs top-mount dampers to improve efficiency and reduce energy costs.
What is a Top Mount Damper?
The top-mount damper, also known as a top-sealing damper, is arguably the most innovative invention for fireplaces since the chimney itself. This type of damper provides fireplace owners with significant advantages. When closed, it forms an airtight seal that prevents drafts and energy loss. Furthermore, it seals the entire flue, from the chimney top to the firebox, from the elements. Operating a top-mount damper is a breeze; it simply requires pulling a chain to open and close it, giving you the simple control you have always wanted in your fireplace.
Here's a closer look at the benefits of installing a top-mount damper:
- Enhanced Energy Efficiency: The airtight seal prevents heat loss in winter and cool air loss in summer, reducing energy bills.
- Superior Weather Protection: It acts as a chimney cap, preventing rain, snow, debris, and pests from entering the flue.
- Reduced Drafts: The tight seal minimizes cold drafts entering the home.
- Improved Fire Safety: Prevents downdrafts that can push smoke and carbon monoxide back into the house.
- Increased Lifespan: Protects the flue from moisture damage.
Understanding the Throat Damper
Most masonry chimneys in eastern RI and eastern MA have a traditional throat damper. Installed just above the firebox, this hinged metal plate controls airflow within the chimney flue. While a throat damper seals the firebox to prevent energy loss, water, leaves, and debris can still accumulate inside the flue, especially if the chimney cap is broken or missing.
Throat Damper Vs. Top Mount Damper
Look at the differences between a throat and a top-sealing damper in this comparison chart.
Feature | Throat Damper | Top-Mount Damper |
Location | Just above the firebox | Top of the chimney flue |
Seal | Airtight | Airtight |
Efficiency | Lower | Higher |
Protection from Elements | Minimal | Excellent |
Ease of Use | Moderate | Easy |
Signs Your Damper Needs Repair
Is your damper functioning properly? Here are some common signs that indicate your damper may need repair or replacement:
- Difficulty opening or closing the damper.
- Visible damage, such as rust or warping.
- Cold drafts around the fireplace when the damper is closed.
- Smoke in the living space when using the fireplace.
- Strange noises coming from the chimney.
How Much Does It Cost to Install a Top Sealing Damper
The cost of installing a top-sealing damper varies depending on the size of your fireplace, specific model, and other factors. The process typically involves a chimney inspection before installing the new top-sealing damper, but removing the old throat damper is not always necessary. Give Horizon Chimney Services a call, and we'll gladly provide an accurate estimate and walk you through the installation process.
Other Types of Chimney Repairs:
Horizon Chimney Services, serving homeowners throughout eastern MA and RI for over three decades, understands the importance of comprehensive chimney care. In addition to chimney cap installations, they offer a full spectrum of chimney repair services, including:
- Masonry repair
- Chimney crown repair
- Damper replacement
- Flue liner installation
- Furnace liner installation
- And more
Call Horizon for Expert Damper Repairs & Installations
Horizon Chimney Services—Your Local Hearth Expert. Your damper is the gateway to your firebox, and a properly functioning one is essential for ventilation and efficiency. Dampers that don't operate correctly lead to air leaks, energy waste, water damage, and pest intrusion. If you suspect your damper needs attention or are interested in the advantages of a top-mount damper, contact Horizon Chimney Services today. Proudly serving the Eastern MA and RI areas, including Millis MA, Medway MA, Needham MA, and Cumberland RI.