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Combi Boilers

Combi boilers are the most popular type of boilers found in homes — both heating your water and providing central heating at the same time. Each combi boiler you'll find here were carefully selected, taking into consideration the boiler output, warranty length, energy efficiency, capacity, fitting location and much more. If you already know what specifications you're looking for with your next combination boiler, use our filter system to navigate our website for tailored searches. Otherwise, scroll through to enjoy a selection of combination boilers from trusted brands.

 
 

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Greenstar 8000+ Style(2)

Vitodens 100-W(4)

Logic ESP1(1)

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258 results

Check stock in your area

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Boiler Pack(9)

Combi Boiler(159)

Commercial Boiler(1)

Gas Boiler(8)

Heat Only (Regular) Boiler(13)

LPG Boiler(3)

Other(65)

View More

Delivery Options

Home delivery(258)

Click & Collect(14)

Brand

Worcester(116)

Ideal Heating(29)

Baxi(23)

Vaillant(13)

Firebird(12)

Warmflow(12)

Glow-worm(12)

Viessmann(12)

Electric Heating Company(11)

Grant(7)

Trianco(3)

Ferroli(3)

Main(2)

Keston(2)

Advance Appliances(1)

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Fuel Type

Combi Gas(25)

Electric(15)

LPG(5)

Natural Gas(112)

Natural Gas/LPG(4)

Oil(37)

Other(60)

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Range

Greenstar 8000+ Style(2)

Vitodens 100-W(4)

Logic ESP1(1)

Combi 2(2)

Logic2(4)

Logic2 Max(2)

Logic2+(1)

Ultimate3(1)

Energy7(3)

Vitodens 025-W(2)

Vitodens 050-W(3)

Vitodens 111-W(1)

Vogue Max(2)

Vitodens 222-F(2)

600(2)

Baxi 624(1)

800(3)

Greenstar 1000(2)

Greenstar 2000(5)

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Baxi 400 2.1(14)

Greenstar 8000 F(7)

Greenstar 8000+(12)

Vortex Pro(7)

Vogue(3)

ecoTEC Plus(5)

Agentis(12)

Assure(3)

Aztec(1)

Aztec Maxi(2)

BlueHelix HiTech RRT(3)

Comet(3)

Eco Compact(2)

ecoFIT Pure(3)

ecoTEC(2)

Other(87)

Advance(1)

Micracom(2)

Energy(2)

Envirogreen(12)

Fusion Astro(4)

Glow-Worm Easicom(2)

Greenstar CDi Compact(3)

Greenstar Heatslave II(6)

Logic(3)

Logic Code(2)

Logic+(2)

Mercury(4)

ecoTEC Pro(3)

View More

ErP Rating

ErP C(1)

ErP A(166)

ErP D(12)

Other(79)

Category

Boiler Packs(27)

Boilers(231)

Heat Output (kW)

8(1)

9(2)

10(1)

12(4)

14.4(3)

18(2)

19(1)

20(4)

21(6)

24(32)

25(11)

26(13)

27(4)

28(7)

30(44)

32(8)

33(5)

34(1)

35(33)

36(15)

38(1)

40(40)

45(1)

50(19)

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Delivery Time

Select a day available(187)

In Stock(45)

Extended Lead Time, 2 Weeks+(26)

Guarantee (Years)

2(62)

3(2)

5(38)

7(38)

8(2)

10(17)

12(14)

Other(85)

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Price

£
to

£610-£1060(46)

£1060-£1280(34)

£1280-£1950(54)

£1950-£2840(48)

£2840-£3280(34)

£3280-£4170(42)

View More

Width (mm)

390(15)

395(38)

400(20)

418(2)

420(3)

435(4)

440(24)

445(2)

450(3)

451(4)

500(3)

515(7)

520(6)

550(6)

570(3)

595(3)

600(8)

614(3)

630(3)

640(3)

658(3)

720(3)

Other(92)

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Stock Status

In Stock Only(232)


Filter Results
258 results
baxi-800-830-gas-combi-2-boiler

Baxi 800 830 30kW Gas Combi 2 Boiler - 7814305

Baxi
£1,367.38 inc
VAT
worcester-greenstar-4000-25kw-combination-boiler-natural-gas

Worcester Bosch Greenstar 4000 25kW Combi Gas Boiler - 7733600371

More Options Available
Worcester
£1,256.20 inc
VAT
ideal-logic-max-combi2-c24-24kw-gas-combi-boiler-228334

Ideal Logic Max Combi2 C24 24kW Gas Combi Boiler - 228334

Ideal Heating
£1,251.78 inc
VAT
trianco-aztec-maxi-8kw-electric-combination-boiler

Trianco Aztec Maxi 8kw Electric Combination Boiler - 4072

Trianco
£2,296.19 inc
VAT
trianco-aztec-maxi-10kw-electric-combination-boiler

Trianco Aztec Maxi 10kW Electric Combination Boiler - 4073

Trianco
£2,089.64 inc
VAT
Save £272.76 | Was £2,362.41
trianco-aztec-maxi-12kw-electric-combination-boiler

Trianco Aztec Maxi 12kW Electric Combination Boiler - 4074

Trianco
£2,188.49 inc
VAT
ferroli-bluehelix-hitech-rrt-28c-combination-boiler-natural-gas

Ferroli BlueHelix HiTech RRT 28C 28kW Combination Boiler Natural Gas - 0T4B4AGA

Ferroli
£766.49 inc
VAT
ferroli-bluehelix-hitech-rrt-24c-combination-boiler-natural-gas

Ferroli BlueHelix HiTech RRT 24C 24kW Combination Boiler Natural Gas - 0T4B2AGA

Ferroli
£711.35 inc
VAT
Save £138.91 | Was £850.26
ferroli-bluehelix-hitech-rrt-34c-combination-boiler-natural-gas

Ferroli BlueHelix HiTech RRT 34C 34kW Combination Boiler Natural Gas - 0T4B7AGA

Ferroli
£851.62 inc
VAT
Firebird Xceed Combipac HE External Oil Boiler 18-20kW - ECE020EXC

Firebird Xceed Combipac HE External Oil Boiler 18-20kW - ECE020EXC

Firebird
£2,993.95 inc
VAT
Firebird Xceed Combipac HE External Oil Boiler 20-26kW - ECE026EXC

Firebird Xceed Combipac HE External Oil Boiler 20-26kW - ECE026EXC

Firebird
£3,090.95 inc
VAT
Firebird Exceed Combipac HE 26-35kW External Combination Oil Boiler - ECE035EXC

Firebird Exceed Combipac HE 26-35kW External Combination Oil Boiler - ECE035EXC

Firebird
£3,497.38 inc
VAT
Firebird Xceed Combi Internal Oil Boiler 18-20kW - ECE020IXC

Firebird Xceed Combi Internal Oil Boiler 18-20kW - ECE020IXC

Firebird
£2,961.59 inc
VAT
Firebird Xceed Combi Internal Oil Boiler 20-26kW - ECE026IXC

Firebird Xceed Combi Internal Oil Boiler 20-26kW - ECE026IXC

Firebird
£2,931.70 inc
VAT
Firebird Xceed Combi HE Internal Oil Boiler 26-35kW - ECE035IXC

Firebird Xceed Combi HE Internal Oil Boiler 26-35kW - ECE035IXC

Firebird
£3,240.95 inc
VAT
firebird-envirogreen-slimline-c20-he-combination-oil-boiler

Firebird Envirogreen Slimline C20 20kW HE Combination Oil Boiler - ECE020SLM

Firebird
£2,921.99 inc
VAT
firebird-envirogreen-slimline-c26-he-combination-oil-boiler

Firebird Envirogreen Slimline C26 26kW HE Combination Oil Boiler - ECE026SLM

Firebird
£2,735.00 inc
VAT
firebird-envirogreen-slimline-c35-he-combination-oil-boiler

Firebird Envirogreen Slimline C35 35kW HE Combination Oil Boiler - ECE035SLM

Firebird
£3,250.00 inc
VAT
main-eco-compact-30kw-natural-gas-combination-boiler-erp

Main Eco Compact 30kW Combi Gas Boiler ErP - 7714161

Main
£791.97 inc
VAT
main-eco-compact-25kw-natural-gas-combination-boiler-erp

Main Eco Compact 25kW Natural Gas Combination Boiler ErP - 7714519

Main
£718.47 inc
VAT
warmflow-agentis-21-27kw-professional-external-combination-oil-boiler

Warmflow Agentis 21-27kW Professional External Combination Oil Boiler - E26CPRO

More Options Available
Warmflow
£3,564.56 inc
VAT
warmflow-agentis-27-33kw-professional-external-combination-oil-boiler

Warmflow Agentis 27-33kW Professional External Combination Oil Boiler - E33CPRO

More Options Available
Warmflow
£4,160.95 inc
VAT
warmflow-agentis-27-33kw-external-combination-oil-boiler

Warmflow Agentis 27-33kW External Combination Oil Boiler - E33C

More Options Available
Warmflow
£3,869.76 inc
VAT
warmflow-agentis-21-27kw-external-combination-oil-boiler

Warmflow Agentis 21-27kW External Combination Oil Boiler - E26C

More Options Available
Warmflow
£3,160.45 inc
VAT
warmflow-agentis-15-21kw-professional-external-combination-oil-boiler

Warmflow Agentis 15-21kW Professional External Combination Oil Boiler - E21CPRO

More Options Available
Warmflow
£3,884.39 inc
VAT
warmflow-agentis-15-21kw-external-combination-oil-boiler

Warmflow Agentis 15-21kW External Combination Oil Boiler - E21C

More Options Available
Warmflow
£3,054.79 inc
VAT
warmflow-agentis-15-21kw-combination-oil-boiler

Warmflow Agentis 15-21kW Internal Combination Oil Boiler - I21C

More Options Available
Warmflow
£3,177.88 inc
VAT
warmflow-agentis-21-27kw-combination-oil-boiler

Warmflow Agentis 21-27kW Combination Internal Oil Boiler - I26C

More Options Available
Warmflow
£3,201.56 inc
VAT
warmflow-agentis-27-33kw-combination-oil-boiler

Warmflow Agentis 27-33kW Combination Internal Oil Boiler - I33C

More Options Available
Warmflow
£3,717.58 inc
VAT
warmflow-agentis-professional-15-21kw-combination-oil-boiler

Warmflow Agentis Professional 15-21kW Combination Internal Oil Boiler - I21CPRO

More Options Available
Warmflow
£3,255.44 inc
VAT
warmflow-agentis-professional-27-33kw-combination-oil-boiler

Warmflow Agentis Professional 27-33kW Combination Internal Oil Boiler - I33CPRO

More Options Available
Warmflow
£4,165.19 inc
VAT
warmflow-agentis-professional-21-27kw-combination-oil-boiler

Warmflow Agentis Professional 21-27kW Combination Internal Oil Boiler - I26CPRO

More Options Available
Warmflow
£3,439.79 inc
VAT
ideal-exclusive-2-30kw-combination-boiler-natural-gas-erp

Ideal Exclusive 2 30kW Combination Boiler Natural Gas ErP - 220479

Ideal Heating
£744.60 inc
VAT
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