Mi-Pellet - Increaser Ø 80mm Boiler to Ø 100
At a Glance
- Crafted from Zero Carbon Steel for durability
- Matt Black vitreous enamel finish enhances heat resistance
- Designed for temperatures up to 600°C
- Optimised friction fit – no sealing needed with T600 high temperature setups
- Suitable for gas, oil, and solid fuel appliances
- Connects seamlessly between appliance and flue system
- Engineered with safety in mind – minimum 375mm clearance to combustibles required
- Versatile design ideal for connecting pipes in various flue systems

We Won't Be Beaten On Price
At National Flues, we continuously monitor competitor prices. This ensures that we consistently offer you the best deals on all our products. Here’s how we keep your costs low:
- Daily Price Matching: Our team adjusts prices to ensure we stay competitive.
- Bulk Purchasing Power: We sell a lot, so we can negotiate better rates with suppliers, passing the savings directly to you.
- Operational Efficiency: We have streamlined processes to reduce overhead.
Price Match Guarantee: If you find the same product cheaper within 48 hours, we’ll match it and refund the difference.
Free Delivery Over £100: Orders over £100 are free delivery (call us if delivery is required outside the mainland UK).
“I saved 20% on my purchase compared to other retailers. Exceptional service!” – Jane D.
Have Questions?
Phone: 01670 206999
Email: [email protected]
- Info
- Specs
- Install
- FAQs
The Mi-Pellet Increaser Ø 80mm Boiler to Ø 100 is engineered for optimal performance in connecting various appliances to your flue system. Suitable for gas, oil, and solid fuel setups, it handles temperatures up to 600°C. Crafted from zero carbon steel and finished in matt black vitreous enamel, this single skin flue system promises durability and excellent heat resistance.
The Mi-Pellet is designed for use as a connecting pipe between your appliance and Flue Liner/Chimney Stack/Twin Wall Flue System, but it should never be used to pass through ceilings or combustible walls. For proper installation, ensure the smaller diameter is pointing downward to keep condensates within the system. In high temperature (T600) applications, sealing the joints is not necessary due to its friction fit design.
However, for positive pressure (P1) pellet installations, seals must be applied at every joint. Always wear appropriate PPE during installation. Regular cleaning and inspection are crucial, especially for solid fuel applications, which should be maintained at least once a year.
Incorporating access doors at directional changes makes maintenance easier, ensuring a long-lasting and efficient system.
SKU: 43-100-006
Technical Specifications | |
---|---|
Material | Zero Carbon Steel |
Steel Thickness | 0.7mm |
Coating | Powder Enamel |
Coating Thickness | 0.3mm |
Colour | Matt Black |
Thermal Rating | Up to 600u00b0C |
Approval | EN1856-2 T600 N1 Vm L8010 G375 |
Minimum Clearance To Combustible | 375mm |
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Thursday, April 3rd. If you need faster stove or fireplace delivery please give us a call. We can often reduce longer lead times if we pay the carrier £25 for express delivery. Visit our Shipping Information page for more information.
Warranty & Returns +
All our products come with warranties. Mi-Flex offers a lifetime guarantee. Returns for damaged items are covered by insurance; non-damaged returns incur return delivery costs.
Price Match Guarantee +
We will match any price like for like. If you find it cheaper within 48 hours, we'll refund the difference.
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National Flues Ltd Verdict
The Mi-Pellet Increaser Ø 80mm Boiler to Ø 100 is an exceptional product that aligns with National Flues' commitment to quality and affordability. Rarely beaten on price, we deliver nationwide to both retail and trade customers, ensuring your heating system gets the best it deserves.
The Mi-Pellet Increaser Ø 80mm Boiler to Ø 100 is designed to seamlessly connect heating appliances to a flue system, ensuring efficient and safe exhaust management.
Mi-Pellet is a trusted brand in the fireplace and flues industry, known for manufacturing high-quality connecting pipes and flue systems that meet rigorous safety and performance standards.
