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Cheapest System Boilers

Cheapest System Boilers

The cheapest system boilers on the market


1. Ferroli Bluehelix 18S

Our score rating: 91.17%

Efficiency rating
94%
Band rating
A
Output in kW
18 kW
Height
700 mm
Width
420 mm
Depth
250 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,600

2. Biasi Advance Plus 16

Our score rating: 81.20%

Efficiency rating
88.7%
Band rating
B
Output in kW
16 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC

Supply and installation around £1,600

3. Ferroli Bluehelix 24S

Our score rating: 90.66%

Efficiency rating
94%
Band rating
A
Output in kW
20 kW
Height
700 mm
Width
420 mm
Depth
250 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,600

4. Biasi Advance Plus 25

Our score rating: 80.64%

Efficiency rating
88.8%
Band rating
B
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,600

5. Glow worm Easicom3 25

Our score rating: 80.47%

Efficiency rating
89.7%
Band rating
B
Output in kW
25 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,600

6. Biasi Advance Plus 30

Our score rating: 80.14%

Efficiency rating
88.7%
Band rating
B
Output in kW
30 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,700

7. Main Eco Compact 15kW

Our score rating: 84.08%

Efficiency rating
93%
Band rating
A
Output in kW
15 kW
Height
700 mm
Width
390 mm
Depth
285 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,700

8. Ariston E-SYSTEM EVO 24

Our score rating: 77.82%

Efficiency rating
90%
Band rating
A
Output in kW
24 kW
Height
TBC
Width
TBC
Depth
TBC
Mounting
Wall
Fuel
Gas
ERP Rating
TBC

Supply and installation around £1,700

9. Ferroli Bluehelix 30S

Our score rating: 88.41%

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

Supply and installation around £1,700

10. Main Eco Compact 18kW

Our score rating: 82.59%

Efficiency rating
93%
Band rating
A
Output in kW
18 kW
Height
700 mm
Width
390 mm
Depth
285 mm
Mounting
Wall
Fuel
Gas
ERP Rating
A

Supply and installation around £1,700

Other system boilers to consider

Range and model Rating Estimated price
Ariston CLAS HE SYSTEM EVO 18 80.29% £1,700
Ariston CLAS HE SYSTEM EVO 24 79.89% £1,800
Glow worm Ultimate3 25 79.98% £1,800
Glow worm Ultimate3 25 79.98% £1,800
Glow worm Energy 12kW 76.77% £1,800
Ariston E-SYSTEM ONE 24 76.67% £1,800
Glow worm Energy 15kW 76.60% £1,800
Ariston CLAS HE SYSTEM EVO 30 79.36% £1,800
Baxi Megaflo 15 86.76% £1,800
Ariston E-SYSTEM EVO 30 76.15% £1,800
Ariston CLAS HE SYSTEM EVO 18
PP Score 80.29% Est price

£1,700

Ariston CLAS HE SYSTEM EVO 24
PP Score 79.89% Est price

£1,800

Glow worm Ultimate3 25
PP Score 79.98% Est price

£1,800

Glow worm Ultimate3 25
PP Score 79.98% Est price

£1,800

Glow worm Energy 12kW
PP Score 76.77% Est price

£1,800

Ariston E-SYSTEM ONE 24
PP Score 76.67% Est price

£1,800

Glow worm Energy 15kW
PP Score 76.60% Est price

£1,800

Ariston CLAS HE SYSTEM EVO 30
PP Score 79.36% Est price

£1,800

Baxi Megaflo 15
PP Score 86.76% Est price

£1,800

Ariston E-SYSTEM EVO 30
PP Score 76.15% Est price

£1,800

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    The cheapest system boilers on the market

    1. Ferroli Bluehelix 18S

    Our score rating: 91.17%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    18 kW
    Height
    700 mm
    Width
    420 mm
    Depth
    250 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,600

    2. Biasi Advance Plus 16

    Our score rating: 81.20%

    Efficiency rating
    88.7%
    Band rating
    B
    Output in kW
    16 kW
    Height
    TBC
    Width
    TBC
    Depth
    TBC
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    TBC

    Supply and installation around £1,600

    3. Ferroli Bluehelix 24S

    Our score rating: 90.66%

    Efficiency rating
    94%
    Band rating
    A
    Output in kW
    20 kW
    Height
    700 mm
    Width
    420 mm
    Depth
    250 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,600

    4. Biasi Advance Plus 25

    Our score rating: 80.64%

    Efficiency rating
    88.8%
    Band rating
    B
    Output in kW
    25 kW
    Height
    TBC
    Width
    TBC
    Depth
    TBC
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,600

    5. Glow worm Easicom3 25

    Our score rating: 80.47%

    Efficiency rating
    89.7%
    Band rating
    B
    Output in kW
    25 kW
    Height
    TBC
    Width
    TBC
    Depth
    TBC
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,600

    6. Biasi Advance Plus 30

    Our score rating: 80.14%

    Efficiency rating
    88.7%
    Band rating
    B
    Output in kW
    30 kW
    Height
    TBC
    Width
    TBC
    Depth
    TBC
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,700

    7. Main Eco Compact 15kW

    Our score rating: 84.08%

    Efficiency rating
    93%
    Band rating
    A
    Output in kW
    15 kW
    Height
    700 mm
    Width
    390 mm
    Depth
    285 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,700

    8. Ariston E-SYSTEM EVO 24

    Our score rating: 77.82%

    Efficiency rating
    90%
    Band rating
    A
    Output in kW
    24 kW
    Height
    TBC
    Width
    TBC
    Depth
    TBC
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    TBC

    Supply and installation around £1,700

    9. Ferroli Bluehelix 30S

    Our score rating: 88.41%

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

    Supply and installation around £1,700

    10. Main Eco Compact 18kW

    Our score rating: 82.59%

    Efficiency rating
    93%
    Band rating
    A
    Output in kW
    18 kW
    Height
    700 mm
    Width
    390 mm
    Depth
    285 mm
    Mounting
    Wall
    Fuel
    Gas
    ERP Rating
    A

    Supply and installation around £1,700

    Other system boilers to consider

    Range and model Rating Estimated price
    Ariston CLAS HE SYSTEM EVO 18 80.29% £1,700
    Ariston CLAS HE SYSTEM EVO 24 79.89% £1,800
    Glow worm Ultimate3 25 79.98% £1,800
    Glow worm Ultimate3 25 79.98% £1,800
    Glow worm Energy 12kW 76.77% £1,800
    Ariston E-SYSTEM ONE 24 76.67% £1,800
    Glow worm Energy 15kW 76.60% £1,800
    Ariston CLAS HE SYSTEM EVO 30 79.36% £1,800
    Baxi Megaflo 15 86.76% £1,800
    Ariston E-SYSTEM EVO 30 76.15% £1,800
    Ariston CLAS HE SYSTEM EVO 18
    PP Score 80.29% Est price

    £1,700

    Ariston CLAS HE SYSTEM EVO 24
    PP Score 79.89% Est price

    £1,800

    Glow worm Ultimate3 25
    PP Score 79.98% Est price

    £1,800

    Glow worm Ultimate3 25
    PP Score 79.98% Est price

    £1,800

    Glow worm Energy 12kW
    PP Score 76.77% Est price

    £1,800

    Ariston E-SYSTEM ONE 24
    PP Score 76.67% Est price

    £1,800

    Glow worm Energy 15kW
    PP Score 76.60% Est price

    £1,800

    Ariston CLAS HE SYSTEM EVO 30
    PP Score 79.36% Est price

    £1,800

    Baxi Megaflo 15
    PP Score 86.76% Est price

    £1,800

    Ariston E-SYSTEM EVO 30
    PP Score 76.15% Est price

    £1,800

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