Gas Combi Boilers

With space-saving considered as a premium feature for most homeowners, combi boilers do not require the need for a bulky hot water cylinder, thus saving valuable space. Gas combi boilers are fed directly from the mains water supply and as such offer on-demand, hot water as soon as a shower or hot tap is turned on, perfect for frantic mornings in a busy household. Aside from being convenient, combi boilers are highly efficient as they only heat water that is required via an internal heat exchanger and are more cost-effective when it comes to installation than other boiler types. With a wide range of models with higher kW outputs for larger properties, there is a suitable combi boiler to suit your central heating needs. Read our detailed guide for more information on what is a combi boiler.

 
 

Filter By
117 results

Brand

Baxi (25)

Ideal (23)

Viessmann (20)

Worcester (19)

Vaillant (15)

Glow-worm (8)

Ferroli (3)

Main (2)

Keston (2)

View More

Category

Boiler Packs (14)

Boilers (101)

Combi Boilers (2)

Price

£
Min
to
Max

£650-£1040 (31)

£1040-£1230 (19)

£1230-£1420 (17)

£1420-£1620 (17)

£1620-£2190 (17)

£2190-£3730 (16)

View More

Heat Output (kW)

19 (3)

24 (18)

25 (8)

26 (5)

28 (6)

29 (1)

30 (29)

32 (10)

33 (1)

34 (1)

35 (12)

36 (13)

38 (1)

40 (5)

43 (1)

45 (1)

50 (2)

View More

Flow Rate (L/min)

8.5 (1)

(1)

9.6 (1)

9.8 (1)

9.9 (4)

10 (1)

10.2 (4)

10.4 (2)

10.6 (2)

10.7 (1)

10.8 (1)

11.1 (1)

11.4 (2)

11.7 (1)

12 (2)

12.2 (4)

12.3 (2)

12.4 (7)

12.5 (1)

13.1 (2)

13.4 (2)

14.4 (1)

14.5 (6)

14.7 (1)

15 (3)

15.2 (1)

15.6 (1)

15.7 (2)

16.2 (1)

16.4 (2)

16.5 (1)

17 (4)

17.8 (1)

18 (1)

18.1 (1)

19 (1)

20 (1)

20.1 (1)

21 (1)

25 (1)

Other (43)

View More

Guarantee (Years)

(42)

(22)

(23)

(3)

10 (9)

12 (7)

Other (11)

View More

Stock Status

In Stock Only (102)


Filter Results
117 results
main-eco-compact-30kw-natural-gas-combination-boiler-erp

Main Eco Compact 30kW Combi Gas Boiler ErP - 7714161

Main
£719.99 inc
VAT
vaillant-ecotec-pro-28-combination-boiler-natural-gas-erp

Vaillant ecoTEC Pro 28 28kW Combination Boiler Natural Gas ErP - 0010021837

Save £395.96 Was £1,394.22
Vaillant
£998.26 inc
VAT
vaillant-ecotec-pro-24-combination-boiler-natural-gas-erp

Vaillant ecoTEC Pro 24 24kW Combination Boiler Natural Gas ErP - 0010021836

Save £312.06 Was £1,243.92
Vaillant
£931.86 inc
VAT
vaillant-ecotec-pro-30-combination-boiler-natural-gas-erp

Vaillant ecoTEC Pro 30 30kW Combination Boiler Natural Gas ErP - 0010016538

Save £404.09 Was £1,483.08
Vaillant
£1,078.99 inc
VAT
worcester-greenstar-4000-30kw-combination-boiler-natural-gas

Worcester Greenstar 4000 30kW Combi Gas Boiler - 7733600373

Options available
Worcester
£1,290.00 inc
VAT
baxi-800-836-gas-combi-2-boiler

Baxi 800 836 36kW Gas Combi 2 Boiler

Baxi
£1,420.80 inc
VAT
baxi-630-gas-combi-2-boiler

Baxi 630 30kW Gas Combi 2 Boiler

Baxi
£959.99 inc
VAT
worcester-greenstar-28cdi-compact-combination-boiler-natural-gas-erp

Worcester Greenstar 28CDi 28kW Compact Combi Gas Boiler - 7733600054

Options available
Worcester
£1,166.10 inc
VAT
baxi-200-228-28kw-combi-2-boiler

Baxi 200 228 28kW Combi 2 Boiler - 7790613

Baxi
£691.03 inc
VAT
baxi-636-gas-combi-2-boiler

Baxi 636 36kW Gas Combi 2 Boiler

Baxi
£1,133.40 inc
VAT
ideal-logic2-c30-combination-boiler-natural-gas-erp-228308

Ideal Logic2 C30 30kW Combination Boiler Natural Gas ErP - 228308

Save £79.13 Was £1,115.99
Ideal
£1,036.86 inc
VAT
baxi-200-224-24kw-combi-2-boiler

Baxi 200 224 24kW Combi 2 Boiler - 7790612

Baxi
£689.99 inc
VAT
keston-combi-2-c30-twin-flue-combi-boiler-228344

Keston Combi 2 C30 Twin Flue Combi Boiler - 228344

Keston
£1,329.96 inc
VAT
baxi-800-830-gas-combi-2-boiler

Baxi 800 830 30kW Gas Combi 2 Boiler

Baxi
£1,278.31 inc
VAT
1 2 3 4