UK boiler makes & ranges.
This boiler directory lists the domestic boiler makes and flagship ranges you meet most on the tools, who each suits, and where to find the manual and GC number. For the exact figures, always work from the data plate and the manufacturer’s own manual.
UK boiler makes
Worcester Bosch
4 rangesWorcester Bosch is one of the most widely fitted domestic boiler brands in the UK. Its Greenstar range spans compact entry combis to powerful combi, system and regular boilers for larger homes, and is a common sight on CP12 and service work across the country.
Greenstar 2000 · Greenstar 4000 · Greenstar 8000 (Life & Style) · Greenstar Ri →Vaillant
3 rangesVaillant is a German manufacturer with a strong UK domestic presence. The ecoTEC family, plus, exclusive and the budget ecoFit pure, covers most home sizes in combi, system and regular formats, and the range was refreshed in the mid-2020s.
ecoTEC plus · ecoFit pure · ecoTEC exclusive →Ideal Heating
3 rangesA long-established UK boiler manufacturer (Ideal Heating). The Logic and Vogue families are common on domestic work, with warranty and feature tiers separating the ranges.
Logic · Logic Max · Vogue Max →Baxi
3 rangesA heritage UK boiler brand. The current numbered ranges (800, 600, 400) plus the Assure line cover most domestic replacements, and Baxi's compact combis are popular for tight cupboard fits.
Baxi 800 · Baxi 600 · Baxi Assure →Glow-worm
2 rangesGlow-worm is a value-focused UK brand (part of the Vaillant Group). Ranges such as Energy, Ultimate3 and Betacom4 are common on budget-conscious domestic work. As part of the Vaillant Group, Glow-worm often shares parts and servicing knowledge with its sister brand, and its ranges are generally positioned as a more affordable alternative to some premium UK boiler makers, which is commonly cited as part of the appeal for cost-conscious households and landlords managing several properties.
Energy · Betacom4 →Manifold is not affiliated with or endorsed by these manufacturers. Brand and model names are used only to help engineers find the right resources. Specifications change by year and variant, always work from the data plate and the manufacturer’s manual.