Eazy Guides

The best conventional boilers in 2026 are the Worcester Bosch Greenstar Ri Heat Only, the Viessmann Vitodens 100-W regular, the Ideal Mexico HE, the Vaillant ecoTEC regular, and the Alpha…

The best condensing boilers in 2026 are the Worcester Bosch Greenstar 4000, the Viessmann Vitodens 100-W, the Vaillant ecoTEC plus, the Ideal Logic Max, and the Baxi 800.  These five…

The best electric boilers in 2026 are the Electric Heating Company Comet, the Heatrae Sadia Electromax, the Elnur Mattira MAC15, the Strom Electric Combi, and the Trianco Aztec.  These five…

The best combi boilers in 2026 are the Worcester Bosch Greenstar 4000, the Vaillant ecoTEC plus, the Viessmann Vitodens 100-W, the Ideal Logic Max, and the Alpha E-Tec.  These five…

The best boilers for a four bedroom house in 2026 are the Worcester Bosch Greenstar 8000 Life 30kW, the Vaillant ecoTEC plus 624 system boiler, the Ideal Vogue Max C32,…

The best boilers for a three bedroom house in 2026 are the Worcester Bosch Greenstar 4000, the Viessmann Vitodens 100-W, the Ideal Logic Max, the Vaillant ecoTEC plus 832, and…

The best boilers for a two bedroom house in 2026 are the Worcester Bosch 2000 25kW, the Viessmann Vitodens 050-W, the Ideal Logic Max, the Alpha E-Tec 28kW, and the…

The best 40kW system boilers in 2026 are the ATAG i40S, the Vaillant ecoTEC plus 637, the Intergas Compact HRE SB 40, the Worcester Bosch Greenstar 8000 Style, and the…

The best system boilers in 2026 are the Worcester Bosch Greenstar 8000 Style, the Viessmann Vitodens 100-W, the Vaillant ecoTEC plus, the Ideal Logic Max, and the Baxi 800 System.…

The best 40kW combi boilers in 2026 are the Worcester Bosch Greenstar 8000 40kW, the Ideal Vogue Max, and the Vaillant ecoTEC plus 840.  These three models consistently top expert…

The best 50kW combi boilers in 2026 are the Worcester Bosch Greenstar 8000+ 50kW, the Flexiheat 50kW Combi, and the Vaillant ecoTEC plus 48kW.  These three models lead the pack…

The F27 fault code means the Vaillant boiler has detected a flame signal while the burner is switched off. In simple terms, the control board thinks a flame is present…