Charnwood External Air Supply Kits are designed to enhance stove performance by supplying combustion air directly from outside, rather than drawing it from within the room. This ensures a cleaner burn, improved efficiency, and consistent performance -especially in well-insulated or airtight homes.

By maintaining a constant source of fresh air, these kits help your Charnwood stove achieve maximum heat output, reduced emissions, and improved overall comfort.

TH50 – Compatible with:
• C-Four, Aire 3, Arc 5, Skye 5, Island 1 (AP serial number)
• Ideal for smaller models and modern homes with limited airflow
• Enhances efficiency and ensures consistent, clean combustion

TH62 – Compatible with:
• Cove 2 and Cove 3 models
• Provides direct external air supply for balanced burn control
• Reduces indoor air pressure fluctuations for steady heating

TH64 – Compatible with:
• Island III Mark 1 and Mark 2 models
• Improves stove performance in larger rooms or sealed spaces
• Supports cleaner, more efficient burning across wider heat ranges

TH81 – Compatible with:
• Bay 5 stove
• Supplies a constant source of external air for optimal combustion
• Increases efficiency and supports cleaner, more consistent burning

TH82 – Compatible with:
• C-Four Insert, C-Five, C-Six, C-Seven, C-Eight, Island II (BP serial numbers), Aire 5, Aire 7, Cranmore 5, Cranmore 7, Arc 7, Skye 7
• Suitable for a wide range of mid-to-large Charnwood stoves
• Improves airflow, efficiency, and reduces emissions