Cast Tec Horizon 5 Wide with masonry1 chimney kit (HORIZON-5-W-chimney)
Ready for installation. This kit is made for use with an existing chimney. Includes everything needed to connect and safely line your flue system. Our experts offer a free design service if you need a variation on this system. Give us a call on 01670 206 999 if you think you might need a few changes to this standard kit.

At a Glance
- Specially engineered for Class 1 masonry chimneys ensuring robust performance.
Complete installation kit featuring essential chimney components.
Comes with our complimentary free design service for a tailored installation plan.
Enhances both the aesthetic and heating efficiency of your home.
Streamlined package for hassle‐free setup and a contemporary look.
Delivery Information +
We work relentlessly to ensure you get your order fast. Estimated delivery for this product is Tuesday, June 10th. This is based on current delivery times for this product. Delivery for products not in our warehouses can be delayed because of third party carriers. If you need a stove, or other bulky product, to be delivered by a specific time in the next 7 days then please give us a call. We can sometimes 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 and you can read in our blog about they types and terms and conditions for warranties. Mi-Flex flue liner, for example, comes with a lifetime guarantee. Give us a call if you want to know about a specific warranty. 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, on a retail basis. Give us a call if you find it cheaper and want to buy from us.
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]
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- FAQs
Cast Tec Horizon 5 Wide with masonry1 chimney kit Discover the ultimate Cast Tec Horizon 5 Wide package – a complete masonry1 chimney kit designed specifically for Class 1 masonry chimneys. With our comprehensive installation kit and free design service, you can enjoy secure, efficient heating and a modern aesthetic. Perfect for enhancing your home’s ambiance while delivering outstanding performance.
Features & Benefits
Class 1 Masonry Chimney Compatibility
Specifically designed for secure and efficient performance on Class 1 masonry chimneys, ensuring peace of mind.
Complete Component Bundle
Includes the SO-T1 10m flex pack bundle, offering all essential parts for a smooth, uninterrupted installation process.
Free Design Service
Benefit from expert advice to optimise your installation layout whether you are in a single or multi-storey property.
SKU: HORIZON-5-W-chimney