5" Firestop Spacer
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In Stock
- Product Code: TWFS105
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£38.24 Excl. VAT £45.89 Inc. VAT
Dispatched within:
1 Day
The Firestop Spacer is designed to fit securely to the underside of rafters where the flue passes through the ceiling, providing essential protection against fire hazards. This spacer helps maintain the required air gap between the flue and any combustible materials, ensuring safety and compliance with building regulations.
Constructed from heavy-duty galvanized steel, the Firestop Spacer is built for durability and long-lasting performance. It has CE approval, and all Jeremias products are HETAS approved, quality tested, and come with a 25-year warranty, giving you peace of mind regarding its reliability and safety.
Please note: This product is specifically designed for use with twin wall flue systems, and all measurements are based on the internal diameter of the flue.
Installation Guide: The twin wall system features a simple push-fit joint design. To install the Firestop Spacer, position it at the underside of your rafters where the flue passes through the ceiling, ensuring a secure fit. This straightforward push-fit system allows for quick and easy assembly, making it one of the simplest systems to construct on the market today.

| Area | Delivery | Order Value | Price (ex VAT) |
|---|---|---|---|
| UK Mainland | Next Day* | Below £150 Net | £15.00 |
| UK Mainland | Next Day* | Over £150 Net | Free |
| Scottish Mainland | 1-2 Days | Below £150 Net | £15.00 |
| Scottish Mainland | 1-2 Days | Over £150 Net | Free |
*Orders must be placed by 2pm for next-day delivery. Deliveries are made Monday to Friday during regular working hours. Orders placed on weekends, public holidays, or bank holidays will be dispatched the next working day.
Pallet Delivery
Some items incur a £50.00 (ex Vat) pallet delivery charge due to their weight and size. This will be calculated at checkout. Also listed below.
| Product | Incuring Limit | Delivery |
|---|---|---|
| All Stoves | All Stoves | 2-4 days |
| 4" & 5" Flue Liner | 16 metres & Over | 48 hours |
| 6" Flue Liner | 13 metres & Over | 48 hours |
| 7" & 8" Flue Liner | 2 metres & Over | 48 hours |
| Vermiculite | 10 bags or more | 48 hours |
| Garden Stove | Per item | 48 hours |
All Pallet deliveries are curbside only. Some orders, especially those containing stoves, may arrive in multiple deliveries due to different suppliers, stock availability, and logistics.
For more information, please visit our Delivery Information page.
- Material: Galvanised Steel
- Construction: 1.5mm Heavy Duty Galvanised Steel - 0.4mm 316 Grade Stainless Steel Bracket
- Warranty: 25 Years
- Designation: EN1856-1 T450 N1 D V3- L50040 G60, EN1856-1 T600 N1 D VM- L20040 G70
- External Diameter: 180mm
- Fuels: Wood, Oil, Gas, Low Sulpher Coal
- Special Notice: Please be advised that all our Twin Wall products are only compatible with Jeremias Twin Wall Flue System and cannot be used with any other Brand of twin wall insulated flue.

At Flue Finder, customer satisfaction is our priority. You can return unused items within 14 days of receipt, except for Stoves and cut-to-length Flue Liners (including liner kits).
If your goods are missing, defective, damaged or not as described please contact info@fluefinder.co.uk.
To initiate a return, please email us at returns@fluefinder.co.uk. We will send you a returns form and the return address.
Important: Returns must be reported in advance.
For more detailed information on the returns process and conditions, please visit our Returns Page.
*Stoves are non-returnable*
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