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All Boiler Models & Specifications

Browse 55+ boiler models from every major brand. Full specs, prices, warranties, and honest advice on which is right for your home.

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Worcester Bosch

5 modelsBrand overview →
Combi94%

Greenstar 4000 28kW

Output: 28 kWEfficiency: 94%Warranty: Up to 12 yearsErP: A
Combi94%

Greenstar 4000 35kW

Output: 35 kWEfficiency: 94%Warranty: Up to 12 yearsErP: A
Combi95.3%

Greenstar 8000 Life 30kW

Output: 30 kWEfficiency: 95.3%Warranty: Up to 12 yearsErP: A+
Combi95.3%

Greenstar 8000 Style 30kW

Output: 30 kWEfficiency: 95.3%Warranty: Up to 12 yearsErP: A+
Combi92%

Greenstar Si Compact 30kW

Output: 30 kWEfficiency: 92%Warranty: Up to 10 yearsErP: A

Vaillant

4 modelsBrand overview →
Combi92%

ecoTEC Pro 28

Output: 28 kWEfficiency: 92%Warranty: Up to 10 yearsErP: A
Combi94%

ecoTEC Plus 30

Output: 30 kWEfficiency: 94%Warranty: Up to 10 yearsErP: A
Combi92%

ecoFIT Pure 30

Output: 30 kWEfficiency: 92%Warranty: Up to 7 yearsErP: A
Combi96%

ecoTEC Exclusive 25

Output: 25 kWEfficiency: 96%Warranty: Up to 10 yearsErP: A+

Baxi

4 modelsBrand overview →
Combi93.5%

Baxi 400 Combi 28

Output: 28 kWEfficiency: 93.5%Warranty: Up to 7 yearsErP: A
Combi94.9%

Baxi 800 Combi 24

Output: 24 kWEfficiency: 94.9%Warranty: Up to 10 yearsErP: A
Combi94.9%

Baxi 800 Combi 2 28kW

Output: 28 kWEfficiency: 94.9%Warranty: Up to 10 yearsErP: A
Combi93%

Baxi 700 Combi 24

Output: 24 kWEfficiency: 93%Warranty: Up to 7 yearsErP: A

Ideal

4 modelsBrand overview →
Combi94%

Logic Max C24

Output: 24 kWEfficiency: 94%Warranty: 10 yearsErP: A
Combi94%

Logic Max C28

Output: 28 kWEfficiency: 94%Warranty: 10 yearsErP: A
Combi94%

Logic Max C30

Output: 30 kWEfficiency: 94%Warranty: 10 yearsErP: A
System94%

Logic Max S24

Output: 24 kWEfficiency: 94%Warranty: 10 yearsErP: A

Viessmann

3 modelsBrand overview →
Combi93%

Vitodens 050-W 25kW

Output: 25 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi96%

Vitodens 100-W 26kW

Output: 26 kWEfficiency: 96%Warranty: Up to 10 yearsErP: A+
Combi98%

Vitodens 200-W 26kW

Output: 26 kWEfficiency: 98%Warranty: Up to 10 yearsErP: A+

Alpha

3 modelsBrand overview →
Combi93%

Alpha E-Tec 24

Output: 24 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi93.5%

Alpha E-Tec Plus 28

Output: 28 kWEfficiency: 93.5%Warranty: Up to 7 yearsErP: A
Combi93.5%

Alpha E-Tec Plus 33

Output: 33 kWEfficiency: 93.5%Warranty: Up to 7 yearsErP: A

Glow-worm

3 modelsBrand overview →
Combi93%

Glow-worm Energy 25C

Output: 25 kWEfficiency: 93%Warranty: Up to 7 yearsErP: A
Combi93%

Glow-worm Energy 35C

Output: 35 kWEfficiency: 93%Warranty: Up to 7 yearsErP: A
Combi94.5%

Glow-worm Ultimate3 30C

Output: 30 kWEfficiency: 94.5%Warranty: Up to 10 yearsErP: A

Potterton

3 modelsBrand overview →
Combi93.5%

Potterton Titanium 24

Output: 24 kWEfficiency: 93.5%Warranty: Up to 7 yearsErP: A
Combi93.5%

Potterton Titanium 33

Output: 33 kWEfficiency: 93.5%Warranty: Up to 7 yearsErP: A
Combi92%

Potterton Gold 24

Output: 24 kWEfficiency: 92%Warranty: Up to 5 yearsErP: A

Remeha

3 modelsBrand overview →
Combi94.5%

Remeha Tzerra Ace 28C

Output: 28 kWEfficiency: 94.5%Warranty: Up to 7 yearsErP: A
Combi94.5%

Remeha Tzerra Ace 35C

Output: 35 kWEfficiency: 94.5%Warranty: Up to 7 yearsErP: A
Combi95%

Remeha Calenta Ace 28C

Output: 28 kWEfficiency: 95%Warranty: Up to 7 yearsErP: A+

Intergas

2 modelsBrand overview →
Combi107%

Intergas Combi Compact HRE 24

Output: 24 kWEfficiency: 107%Warranty: Up to 5 yearsErP: A+
Combi107%

Intergas Rapid HRE 36

Output: 36 kWEfficiency: 107%Warranty: Up to 5 yearsErP: A+

Navien

2 modelsBrand overview →
Combi97%

Navien NCM 24kW

Output: 24 kWEfficiency: 97%Warranty: Up to 5 yearsErP: A+
Combi97%

Navien NCM 30kW

Output: 30 kWEfficiency: 97%Warranty: Up to 5 yearsErP: A+

Ariston

3 modelsBrand overview →
Combi93%

Ariston Clas One 28

Output: 28 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi94%

Ariston Alteas One 30

Output: 30 kWEfficiency: 94%Warranty: Up to 7 yearsErP: A
Combi95%

Ariston Genus Premium Evo 24

Output: 24 kWEfficiency: 95%Warranty: Up to 7 yearsErP: A+

Ferroli

2 modelsBrand overview →
Combi93%

Ferroli BlueHelix Tech RRT 25

Output: 25 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi93.5%

Ferroli Modena F30

Output: 30 kWEfficiency: 93.5%Warranty: Up to 5 yearsErP: A

Grant

2 modelsBrand overview →
Oil97.5%

Grant Vortex Oil 26-35

Output: 26–35 kWEfficiency: 97.5%Warranty: 5 yearsErP: A+
Oil95%

Grant Vortex Blue 26-35

Output: 26–35 kWEfficiency: 95%Warranty: 5 yearsErP: A

Warmflow

2 modelsBrand overview →
Oil97%

Warmflow Agentis Pro 26

Output: 26 kWEfficiency: 97%Warranty: 5 yearsErP: A+
Oil97%

Warmflow Agentis Pro 35

Output: 35 kWEfficiency: 97%Warranty: 5 yearsErP: A+

Main

2 modelsBrand overview →
Combi94.5%

Main Eco Elite Combi 30

Output: 30 kWEfficiency: 94.5%Warranty: Up to 7 yearsErP: A
Combi93%

Main Eco Compact 25

Output: 25 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A

Heatline

2 modelsBrand overview →
Combi93%

Heatline Capriz 2 25C

Output: 25 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi93%

Heatline Capriz 2 30C

Output: 30 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A

Ravenheat

2 modelsBrand overview →
Combi92%

Ravenheat RST 100C 30

Output: 30 kWEfficiency: 92%Warranty: Up to 2 yearsErP: A
Combi92%

Ravenheat RST 100E 25

Output: 25 kWEfficiency: 92%Warranty: Up to 2 yearsErP: A

Chaffoteaux

2 modelsBrand overview →
Combi93%

Chaffoteaux Serelia Green 24

Output: 24 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A
Combi93%

Chaffoteaux Serelia Green 28

Output: 28 kWEfficiency: 93%Warranty: Up to 5 yearsErP: A

Biasi

2 modelsBrand overview →
Combi93.5%

Biasi Riva Advance 28

Output: 28 kWEfficiency: 93.5%Warranty: Up to 5 yearsErP: A
Combi93.5%

Biasi Riva Advance 35

Output: 35 kWEfficiency: 93.5%Warranty: Up to 5 yearsErP: A

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