The Glow-worm Compact 24C LPG is a wall-hung, room-sealed condensing combi boiler rated at 24kW, factory-configured for LPG and built in the UK at Glow-worm's Belper factory. This listing bundles the boiler with the Glow-worm Standard Horizontal Flue Kit (10031041), a 60/100mm concentric push-fit kit for standard wall termination, and the Glow-worm Power System Filter (10035820) to protect the heat exchanger from circulating debris. One of the smallest and lightest boilers in the Glow-worm range at just 626 x 400 x 270mm, the Compact 24C suits tight airing cupboard or kitchen cupboard installations without compromising on output.
9.0 – 20.0 kW
CH Output Range
5 yrs
Parts & Labour Guarantee
Gas Safe Registration & LPG Installation Requirements
This is an LPG-specific boiler (gas category II2H3P) and must only be installed, commissioned and serviced by a Gas Safe registered engineer holding the relevant LPG qualification. It must not be connected to a natural gas supply. The flue must be positioned in accordance with the clearances in the manufacturer's installation instructions, and a Benchmark commissioning checklist must be completed and left with the end user.
Bundle Contents & Compatibility
This listing supplies three separate boxed items designed to be installed together: the Compact 24C LPG boiler (article 0010040107), the Glow-worm Standard Horizontal Flue Kit (0010031041), and the Power System Filter (10035820). The horizontal kit is suitable for standard 60/100mm through-wall termination only.
Why This Bundle
Purpose-Built for LPG
Factory-configured for liquefied petroleum gas (G31) rather than field-converted, making this the correct specification for off-gas-grid properties and static caravan installations running on LPG.
Compact, Lightweight Design
At 25.6 kg net and 626 x 400 x 270mm, the Compact 24C is one of the smallest and lightest boilers Glow-worm produces, easing installation in restricted spaces.
High-Efficiency Modulating Pump
A modulating pump adapts its output to actual heating and hot water demand rather than running at a fixed speed, lowering electricity consumption and running costs.
Quiet Heat Exchanger
Built around a heat exchanger engineered for low operating noise, keeping the boiler unobtrusive in kitchen or hallway cupboard installations close to living space.
UK-Built Quality
Manufactured at Glow-worm's award-winning factory in Belper, Derbyshire, alongside the wider Vaillant Group boiler range with which it shares core componentry.
Horizontal Flue Included
This bundle supplies the correct Glow-worm-approved flue components for a through-wall termination, removing the guesswork of matching third-party flue accessories to the boiler.
Technical Specification
| General |
| Boiler article number |
0010040107 |
| Flue kit article number(s) |
10031041 |
| System filter article number |
10035820 |
| Boiler type |
Wall-hung, room-sealed, fan-assisted condensing combi |
| Gas category |
II2H3P (LPG, G31) — factory set |
| Dimensions (H x W x D) |
626 x 400 x 270 mm |
| Guarantee |
5 years parts and labour |
| Heating Performance |
| Nominal heat output range (50/30°C, condensing) |
9.0 – 20.0 kW |
| Nominal heat output range (75/55°C) |
8.1 – 18.3 kW |
| Maximum flow temperature |
75°C |
| Flow temperature adjustment range |
30 – 75°C |
| Maximum operating pressure (heating) |
3.0 bar |
| Domestic Hot Water |
| Specific flow rate D (ΔT = 30K) |
11.5 l/min |
| Specific flow rate D (ΔT = 35K) |
9.9 l/min |
| Minimum water flow |
1.7 l/min |
| DHW output temperature range |
35 – 55°C |
| Recommended supply pressure |
3.0 bar |
| Performance & Emissions |
| ErP efficiency |
92% |
| NOx class |
6 |
| Net weight |
25.6 kg |
| IP rating |
IPX5 |
| Flue |
| Permitted installation types |
C13, C33, C43, C53 |
| Max. horizontal flue length (60/100mm, incl. 1 elbow) |
9 m |
| Max. vertical flue length (60/100mm, incl. 1 elbow) |
10 m |
Frequently Asked Questions
Does this listing include the boiler, flue, and filter, or do I need to buy them separately?
All items are included in this single listing: the Compact 24C LPG boiler (0010040107), the horizontal flue kit, and the Power System Filter (10035820).
Is this boiler suitable for a natural gas supply?
No. This is a dedicated LPG variant, factory set for propane (G31) operation and carries a different article number to the equivalent natural gas Compact model. It must not be run on natural gas.
Why is a system filter included with the boiler?
The Power System Filter (10035820) protects the boiler's heat exchanger and internal components from debris and sludge circulating in the heating system, helping protect the guarantee and long-term reliability.
Can I use this boiler with a static caravan installation?
The Compact LPG range is commonly specified for static caravans and off-gas-grid properties; confirm compliance with the current edition of the relevant caravan and residential park installation standards with your Gas Safe engineer before installation.
Can I install this boiler myself?
No. UK law requires that all gas boiler installation, commissioning and servicing work is carried out by a Gas Safe registered engineer holding the appropriate LPG qualification.
What size property is the Compact 24C suitable for?
With a central heating output range of 9.0 – 20.0 kW, the Compact 24C is best suited to properties with up to 10 radiators, 1 bathroom, subject to a proper heat loss calculation.
