ENERGY EFFICIENCY
ErP class A
Glow-worm lists class A for heating and hot water on both Ultimate₃ combi variants. Modulation lets the appliance adjust its output to changing demand.
Technical information ↗THE GAS MAN / Glow-worm
Glow-worm boilers in Newcastle.
Know your options.
Straightforward heating and hot water, with the details explained. Joe can help with Glow-worm servicing, fault diagnosis and replacement options suited to your home.
Talk to Joe
A CLOSER LOOK
Combi boiler
Ultimate₃ Combi
The Ultimate₃ combi provides central heating and hot water without a separate cylinder. Glow-worm lists 30kW and 35kW versions; the water supply and your household’s demand help determine which is suitable.
Features worth knowing
Aluminium heat exchanger, modulating Grundfos pump, LCD controls and compatibility with the optional MiGo Link app-based control.
Manufacturer product information ↗SERVICE INTERVAL
Every year
Arrange an annual service following the manufacturer’s instructions. Keep the service record with your commissioning paperwork to support ongoing warranty cover.
Manufacturer servicing advice ↗GUARANTEE / WARRANTY
5 years standard
Up to ten years is available only through qualifying myREWARDS registration with a Glow-worm Power Filter. Annual servicing and the manufacturer’s terms apply. Joe will confirm which guarantee is available for your installation.
Check cover and conditions ↗Manufacturer information checked 17 October 2026. Specifications and offers can change; the exact model, product code and confirmed quotation determine what is supplied. Product photography: Glow-worm.
THE WIDER PICTURE
Other options and existing boilers.
The right size matters more than the biggest number.
A suitable boiler needs to match your home’s heat loss and hot-water demand. Joe can check your existing setup, available space, water supply and controls before recommending an installation. Efficiency labels compare products under defined conditions; they are not a promise of a particular saving on your bill.
How we approach a new boiler installation ↗LOCAL CARE, FROM INSTALLATION ONWARDS
Help with your Glow-worm boiler.
Manufacturer warranties cover qualifying defects under their own terms. They do not automatically include annual servicing or every fault in the wider heating system. If your boiler is already under cover, check the manufacturer’s claim process before arranging a chargeable repair.