The Glow-worm Compact Vertical Flue Adaptor (10031029) is the boiler-specific component required to connect a Glow-worm Compact combi boiler to a vertical roof duct. It transitions the boiler's horizontal flue spigot into a vertical 60/100mm run, and is the correct adaptor to pair with the Glow-worm Vertical Flue Terminal (0020230604) on Compact range installations. 60/100mm Flue Diameter Compact Boiler Range Vertical Adaptor Function PP Material Push-Fit Connection Type 1 Adaptor Gas Safe Installation Requirement Flue components must only be fitted by a Gas Safe registered engineer as part of a compliant, boiler-manufacturer-approved flue system. Compact Range Only This adaptor is specific to the Glow-worm Compact combi boiler range. Other Glow-worm ranges (ENERGY, ULTIMATE, EASICOM) use a different vertical flue adaptor part number — check compatibility against your exact boiler model before ordering. Why This Component Boiler-Specific Fit Engineered specifically for the Compact boiler's flue spigot geometry, ensuring a correct, manufacturer-approved seal between the boiler and the vertical roof duct. Enables Vertical Termination Without this adaptor, a Compact boiler's flue cannot be transitioned to a vertical roof penetration — it's the single component that makes a roof termination possible on this range. Push-Fit Installation Uses the same tool-free push-fit jointing as the rest of the Glow-worm 60/100mm flue system, keeping installation quick and consistent. Matches the Wider Flue Range Once fitted, the adaptor connects directly to the Glow-worm Vertical Flue Terminal (0020230604) and any further extensions or bends from the same 60/100mm system. Technical Specification General Article number 10031029 Product type Vertical flue adaptor Flue diameter 60/100mm concentric Material Polypropylene (PP) Compatible boiler range Glow-worm Compact combi Compatibility Pairs with Glow-worm Vertical Flue Terminal 0020230604 Connection type Push-fit Frequently Asked Questions Will this adaptor fit any Glow-worm boiler?No. This adaptor is specific to the Compact combi boiler range. Other Glow-worm ranges use a different vertical flue adaptor part number — check your boiler's installation manual before ordering.Do I need anything else to complete a vertical flue installation?Yes — this adaptor connects the boiler to a vertical roof duct, such as the Glow-worm Vertical Flue Terminal (0020230604), which is sold separately along with any required extensions.Can I install this myself?No. Flue components must be installed by a Gas Safe registered engineer to ensure the completed system is safe and compliant.Does this adaptor work with horizontal flue installations too?No, this is a vertical flue adaptor specifically for transitioning to a roof termination. Horizontal installations use a separate standard horizontal flue kit.