Glow-worm Betacom4

At a glance

• Configurations: Combi
• Best suited to: Smaller homes on a tighter budget
• Fuel: Mains natural gas (some variants are LPG-convertible, check the manufacturer’s data).

Specifications

Match the badge in front of you to a row before you use any of this. Every figure below was read from the Glow-worm literature listed under Sources at the foot of this page, checked 6 September 2026. Outputs, variants and part numbers change by year, so the appliance data plate is still the last word.

• Glow-worm now lists the Betacom 4 among its legacy ranges, so check the literature library for the manual that matches the unit in front of you.
• The serial carries the build date: the third and fourth digits are the year of production and the fifth and sixth the week. The Betacom 4 24c article number is 0010021204 and the 30c is 0010021205.

Where the data plate is

Identification plate on the underside of the appliance. The serial number is repeated in the short operating instructions and on stickers on the back of the electronics box.

Worth knowing on site

• A no-frills combi range.
• Check the output and warranty terms on Glow-worm's site before quoting.

On the tools

Betacom4 is the range engineers reach for on the most straightforward, cost-conscious combi swaps, where the customer has explicitly prioritised price over features. Being entry-level, it is a common fit-and-forget choice for smaller properties with modest hot-water demand.

Variants and configuration

Unlike Energy, Betacom4 is combi-only, with no system or regular option in the range, which simplifies the on-site decision but narrows what it can be quoted for. Check the output and warranty terms on Glow-worm's site before quoting, since it sits at the value end of the brand.

Where it sits in the range

Betacom4 sits below Energy in Glow-worm's current line-up as the brand's no-frills entry point. It is typically fitted in smaller homes where a full-featured range would be more boiler than the property or budget calls for.

Finding the manual and the data plate

For the exact outputs, gas rate, dimensions and commissioning figures, work from the appliance’s data plate and the manufacturer’s installation and servicing instructions. The GC (Gas Council) number and serial are on the data plate, usually behind the front panel or on the underside. Glow-wormpublishes its manuals and support at Glow-worm support.