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Best Gas Heat Only Boilers

Best Gas Heat Only Boilers

The best gas heat only boilers on the market


1. Vaillant ecoTEC Plus 415

Our score rating: 96.51%

Efficiency rating
94%
Band rating
A
Output in kW
15 kW
Height
600 mm
Width
375 mm
Depth
320 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,900

2. Vaillant ecoTEC Plus 418

Our score rating: 95.45%

Efficiency rating
94%
Band rating
A
Output in kW
18 kW
Height
600 mm
Width
375 mm
Depth
316 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £2,000

3. Vaillant ecoFIT Pure 412

Our score rating: 94.82%

Efficiency rating
94%
Band rating
A
Output in kW
12 kW
Height
600 mm
Width
375 mm
Depth
295 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,800

4. Vaillant ecoTEC Plus 424

Our score rating: 94.77%

Efficiency rating
94%
Band rating
A
Output in kW
24 kW
Height
600 mm
Width
375 mm
Depth
320 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £2,100

5. Vaillant ecoFIT Pure 415

Our score rating: 94.23%

Efficiency rating
94%
Band rating
A
Output in kW
15 kW
Height
600 mm
Width
375 mm
Depth
295 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,800

6. Vaillant ecoTEC Plus 430

Our score rating: 94.23%

Efficiency rating
94%
Band rating
A
Output in kW
30 kW
Height
600 mm
Width
375 mm
Depth
320 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £2,100

7. Worcester Bosch Greenstar Ri 12Ri

Our score rating: 94.18%

Efficiency rating
92%
Band rating
A
Output in kW
12 kW
Height
600 mm
Width
390 mm
Depth
270 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,900

8. Worcester Bosch Greenstar Ri 15Ri

Our score rating: 93.93%

Efficiency rating
92%
Band rating
A
Output in kW
15 kW
Height
600 mm
Width
390 mm
Depth
270 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,900

9. Worcester Bosch Greenstar Ri 18Ri

Our score rating: 93.26%

Efficiency rating
92%
Band rating
A
Output in kW
18 kW
Height
600 mm
Width
390 mm
Depth
270 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,900

10. Vaillant ecoFIT Pure 418

Our score rating: 93.11%

Efficiency rating
94%
Band rating
A
Output in kW
18 kW
Height
600 mm
Width
375 mm
Depth
295 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,900

Other gas heat only boilers to consider

Range and model Rating Estimated price
Viessmann Vitodens 100-W 16kW 93.02% £2,000
Viessmann Vitodens 100-W 19kW 92.89% £2,000
Worcester Bosch Greenstar Ri 24Ri 92.69% £2,000
Worcester Bosch Greenstar Ri 21Ri 92.45% £2,000
Viessmann Vitodens 100-W 26kW 92.44% £2,000
Vaillant ecoFIT Pure 425 92.26% £2,000
Vaillant ecoFIT Pure 430 91.73% £2,000
Worcester Bosch Greenstar Ri 27Ri 91.63% £2,100
Vaillant ecoTEC Plus 435 91.61% £2,600
Worcester Bosch Greenstar Ri 30Ri 91.27% £2,100
Viessmann Vitodens 100-W 16kW
PP Score 93.02% Est price

£2,000

Viessmann Vitodens 100-W 19kW
PP Score 92.89% Est price

£2,000

Worcester Bosch Greenstar Ri 24Ri
PP Score 92.69% Est price

£2,000

Worcester Bosch Greenstar Ri 21Ri
PP Score 92.45% Est price

£2,000

Viessmann Vitodens 100-W 26kW
PP Score 92.44% Est price

£2,000

Vaillant ecoFIT Pure 425
PP Score 92.26% Est price

£2,000

Vaillant ecoFIT Pure 430
PP Score 91.73% Est price

£2,000

Worcester Bosch Greenstar Ri 27Ri
PP Score 91.63% Est price

£2,100

Vaillant ecoTEC Plus 435
PP Score 91.61% Est price

£2,600

Worcester Bosch Greenstar Ri 30Ri
PP Score 91.27% Est price

£2,100

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    The best gas heat only boilers on the market

    1. Vaillant ecoTEC Plus 415

    Our score rating: 96.51%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    15 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    320 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,900

    2. Vaillant ecoTEC Plus 418

    Our score rating: 95.45%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    18 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    316 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £2,000

    3. Vaillant ecoFIT Pure 412

    Our score rating: 94.82%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    12 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    295 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,800

    4. Vaillant ecoTEC Plus 424

    Our score rating: 94.77%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    24 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    320 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £2,100

    5. Vaillant ecoFIT Pure 415

    Our score rating: 94.23%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    15 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    295 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,800

    6. Vaillant ecoTEC Plus 430

    Our score rating: 94.23%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    30 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    320 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £2,100

    7. Worcester Bosch Greenstar Ri 12Ri

    Our score rating: 94.18%

    Efficiency rating
    92%
    Band rating
    A
    Output in kW
    12 kW
    Height
    600 mm
    Width
    390 mm
    Depth
    270 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,900

    8. Worcester Bosch Greenstar Ri 15Ri

    Our score rating: 93.93%

    Efficiency rating
    92%
    Band rating
    A
    Output in kW
    15 kW
    Height
    600 mm
    Width
    390 mm
    Depth
    270 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,900

    9. Worcester Bosch Greenstar Ri 18Ri

    Our score rating: 93.26%

    Efficiency rating
    92%
    Band rating
    A
    Output in kW
    18 kW
    Height
    600 mm
    Width
    390 mm
    Depth
    270 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,900

    10. Vaillant ecoFIT Pure 418

    Our score rating: 93.11%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    18 kW
    Height
    600 mm
    Width
    375 mm
    Depth
    295 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,900

    Other gas heat only boilers to consider

    Range and model Rating Estimated price
    Viessmann Vitodens 100-W 16kW 93.02% £2,000
    Viessmann Vitodens 100-W 19kW 92.89% £2,000
    Worcester Bosch Greenstar Ri 24Ri 92.69% £2,000
    Worcester Bosch Greenstar Ri 21Ri 92.45% £2,000
    Viessmann Vitodens 100-W 26kW 92.44% £2,000
    Vaillant ecoFIT Pure 425 92.26% £2,000
    Vaillant ecoFIT Pure 430 91.73% £2,000
    Worcester Bosch Greenstar Ri 27Ri 91.63% £2,100
    Vaillant ecoTEC Plus 435 91.61% £2,600
    Worcester Bosch Greenstar Ri 30Ri 91.27% £2,100
    Viessmann Vitodens 100-W 16kW
    PP Score 93.02% Est price

    £2,000

    Viessmann Vitodens 100-W 19kW
    PP Score 92.89% Est price

    £2,000

    Worcester Bosch Greenstar Ri 24Ri
    PP Score 92.69% Est price

    £2,000

    Worcester Bosch Greenstar Ri 21Ri
    PP Score 92.45% Est price

    £2,000

    Viessmann Vitodens 100-W 26kW
    PP Score 92.44% Est price

    £2,000

    Vaillant ecoFIT Pure 425
    PP Score 92.26% Est price

    £2,000

    Vaillant ecoFIT Pure 430
    PP Score 91.73% Est price

    £2,000

    Worcester Bosch Greenstar Ri 27Ri
    PP Score 91.63% Est price

    £2,100

    Vaillant ecoTEC Plus 435
    PP Score 91.61% Est price

    £2,600

    Worcester Bosch Greenstar Ri 30Ri
    PP Score 91.27% Est price

    £2,100

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