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Cheap Oil Combi Boilers

Cheap Oil Combi Boilers

The cheapest oil combi boilers on the market


1. Firebird Envirogreen 20

Our score rating: 66.67%

Efficiency rating
93%
Band rating
A
Output in kW
20 kW
Height
845 mm
Width
595 mm
Depth
614 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,500

2. Firebird Envirogreen Slimline Combi C26

Our score rating: 66.64%

Efficiency rating
93%
Band rating
A
Output in kW
26 kW
Height
855 mm
Width
520 mm
Depth
600 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,500

3. Worcester Bosch Greenstar Heatslave II 12/18

Our score rating: 76.19%

Efficiency rating
90%
Band rating
A
Output in kW
18 kW
Height
855 mm
Width
520 mm
Depth
600 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,500

4. Grant Vortex Pro 21

Our score rating: 67.46%

Efficiency rating
90.8%
Band rating
A
Output in kW
21 kW
Height
860 mm
Width
614 mm
Depth
606 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,500

5. Worcester Bosch Greenstar Heatslave II 18/25

Our score rating: 76.12%

Efficiency rating
90%
Band rating
A
Output in kW
25 kW
Height
855 mm
Width
520 mm
Depth
600 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,500

6. Grant Vortex Pro 26

Our score rating: 67.43%

Efficiency rating
89.5%
Band rating
A
Output in kW
26 kW
Height
860 mm
Width
614 mm
Depth
606 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,600

7. Firebird Envirogreen Combipac C20

Our score rating: 66.50%

Efficiency rating
93%
Band rating
A
Output in kW
20 kW
Height
945 mm
Width
720 mm
Depth
625 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,600

8. Grant Vortex Pro 26kW

Our score rating: 67.35%

Efficiency rating
90%
Band rating
A
Output in kW
26 kW
Height
857 mm
Width
515 mm
Depth
606 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,600

9. Grant Vortex Pro 21

Our score rating: 67.31%

Efficiency rating
90.8%
Band rating
A
Output in kW
21 kW
Height
945 mm
Width
658 mm
Depth
754 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,700

10. Worcester Bosch Greenstar Heatslave II External 12/18

Our score rating: 75.95%

Efficiency rating
90%
Band rating
A
Output in kW
18 kW
Height
950 mm
Width
640 mm
Depth
770 mm
Mounting
Floor
Fuel
Oil
ERP Rating
A

Supply and installation around £3,700

Other oil combi boilers to consider

Range and model Rating Estimated price
Firebird Envirogreen Combipac C26 66.39% £3,700
Firebird Envirogreen Slimline Combi C35 66.30% £3,800
Worcester Bosch Greenstar Heatslave II 25/32 75.83% £3,800
Grant Vortex Pro 26 67.14% £3,800
Firebird Envirogreen 35 66.25% £3,800
Grant Vortex Pro 36 67.11% £3,800
Grant VortexBlue 21kW 66.99% £3,900
Grant VortexBlue 21kW 66.98% £3,900
Worcester Bosch Greenstar Heatslave II External 25/32 75.58% £4,000
Grant VortexBlue 26kW 66.76% £4,200
Firebird Envirogreen Combipac C26
PP Score 66.39% Est price

£3,700

Firebird Envirogreen Slimline Combi C35
PP Score 66.30% Est price

£3,800

Worcester Bosch Greenstar Heatslave II 25/32
PP Score 75.83% Est price

£3,800

Grant Vortex Pro 26
PP Score 67.14% Est price

£3,800

Firebird Envirogreen 35
PP Score 66.25% Est price

£3,800

Grant Vortex Pro 36
PP Score 67.11% Est price

£3,800

Grant VortexBlue 21kW
PP Score 66.99% Est price

£3,900

Grant VortexBlue 21kW
PP Score 66.98% Est price

£3,900

Worcester Bosch Greenstar Heatslave II External 25/32
PP Score 75.58% Est price

£4,000

Grant VortexBlue 26kW
PP Score 66.76% Est price

£4,200

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    The cheapest oil combi boilers on the market

    1. Firebird Envirogreen 20

    Our score rating: 66.67%

    Efficiency rating
    93%
    Band rating
    A
    Output in kW
    20 kW
    Height
    845 mm
    Width
    595 mm
    Depth
    614 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,500

    2. Firebird Envirogreen Slimline Combi C26

    Our score rating: 66.64%

    Efficiency rating
    93%
    Band rating
    A
    Output in kW
    26 kW
    Height
    855 mm
    Width
    520 mm
    Depth
    600 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,500

    3. Worcester Bosch Greenstar Heatslave II 12/18

    Our score rating: 76.19%

    Efficiency rating
    90%
    Band rating
    A
    Output in kW
    18 kW
    Height
    855 mm
    Width
    520 mm
    Depth
    600 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,500

    4. Grant Vortex Pro 21

    Our score rating: 67.46%

    Efficiency rating
    90.8%
    Band rating
    A
    Output in kW
    21 kW
    Height
    860 mm
    Width
    614 mm
    Depth
    606 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,500

    5. Worcester Bosch Greenstar Heatslave II 18/25

    Our score rating: 76.12%

    Efficiency rating
    90%
    Band rating
    A
    Output in kW
    25 kW
    Height
    855 mm
    Width
    520 mm
    Depth
    600 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,500

    6. Grant Vortex Pro 26

    Our score rating: 67.43%

    Efficiency rating
    89.5%
    Band rating
    A
    Output in kW
    26 kW
    Height
    860 mm
    Width
    614 mm
    Depth
    606 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,600

    7. Firebird Envirogreen Combipac C20

    Our score rating: 66.50%

    Efficiency rating
    93%
    Band rating
    A
    Output in kW
    20 kW
    Height
    945 mm
    Width
    720 mm
    Depth
    625 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,600

    8. Grant Vortex Pro 26kW

    Our score rating: 67.35%

    Efficiency rating
    90%
    Band rating
    A
    Output in kW
    26 kW
    Height
    857 mm
    Width
    515 mm
    Depth
    606 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,600

    9. Grant Vortex Pro 21

    Our score rating: 67.31%

    Efficiency rating
    90.8%
    Band rating
    A
    Output in kW
    21 kW
    Height
    945 mm
    Width
    658 mm
    Depth
    754 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,700

    10. Worcester Bosch Greenstar Heatslave II External 12/18

    Our score rating: 75.95%

    Efficiency rating
    90%
    Band rating
    A
    Output in kW
    18 kW
    Height
    950 mm
    Width
    640 mm
    Depth
    770 mm
    Mounting
    Floor
    Fuel
    Oil
    ERP Rating
    A

    Supply and installation around £3,700

    Other oil combi boilers to consider

    Range and model Rating Estimated price
    Firebird Envirogreen Combipac C26 66.39% £3,700
    Firebird Envirogreen Slimline Combi C35 66.30% £3,800
    Worcester Bosch Greenstar Heatslave II 25/32 75.83% £3,800
    Grant Vortex Pro 26 67.14% £3,800
    Firebird Envirogreen 35 66.25% £3,800
    Grant Vortex Pro 36 67.11% £3,800
    Grant VortexBlue 21kW 66.99% £3,900
    Grant VortexBlue 21kW 66.98% £3,900
    Worcester Bosch Greenstar Heatslave II External 25/32 75.58% £4,000
    Grant VortexBlue 26kW 66.76% £4,200
    Firebird Envirogreen Combipac C26
    PP Score 66.39% Est price

    £3,700

    Firebird Envirogreen Slimline Combi C35
    PP Score 66.30% Est price

    £3,800

    Worcester Bosch Greenstar Heatslave II 25/32
    PP Score 75.83% Est price

    £3,800

    Grant Vortex Pro 26
    PP Score 67.14% Est price

    £3,800

    Firebird Envirogreen 35
    PP Score 66.25% Est price

    £3,800

    Grant Vortex Pro 36
    PP Score 67.11% Est price

    £3,800

    Grant VortexBlue 21kW
    PP Score 66.99% Est price

    £3,900

    Grant VortexBlue 21kW
    PP Score 66.98% Est price

    £3,900

    Worcester Bosch Greenstar Heatslave II External 25/32
    PP Score 75.58% Est price

    £4,000

    Grant VortexBlue 26kW
    PP Score 66.76% Est price

    £4,200

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