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Combi Oil Boilers

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Discover our collection of oil fired combi boilers, which can be mounted on walls both internally or externally to create the perfect central heating system in your home. 2-year guarantee available.
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Grant Vortex Pro 36kW Combi Oil Boiler Oil ErP
Product Code: 287701

Grant Vortex Pro 36kW Combi Oil Boiler Oil ErP

Retail price

£3,512.17

each
£2,926.81 ex. vat

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Grant Vortex Pro 26kW Combi Oil Boiler
Product Code: 287700

Grant Vortex Pro 26kW Combi Oil Boiler

Retail price

£3,162.70

each
£2,635.58 ex. vat

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Grant Vortex Pro 26Kw Combi External Oil Boiler Includes Flue
Product Code: 447638

Grant Vortex Pro 26Kw Combi External Oil Boiler Includes Flue

Retail price

£3,445.19

each
£2,870.99 ex. vat

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Grant Vortex Pro 21kw Combi External Oil Boiler Includes Flue
5 (2 reviews)
Product Code: 792466

Grant Vortex Pro 21kw Combi External Oil Boiler Includes Flue

Retail price

£3,204.94

each
£2,670.78 ex. vat

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Greenstar Heatslave II 18/25 2022+
Product Code: 267255

Greenstar Heatslave II 18/25 2022+

Retail price

£3,407.77

each
£2,839.81 ex. vat

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Greenstar Heatslave II Ext 18/25 2022+
Product Code: 267241

Greenstar Heatslave II Ext 18/25 2022+

Retail price

£3,606.65

each
£3,005.54 ex. vat

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Greenstar Heatslave II 25/32 2022+
Product Code: 267235

Greenstar Heatslave II 25/32 2022+

Retail price

£3,667.94

each
£3,056.62 ex. vat

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Grant Vortex Internal Pro 21kW Combi Oil Boiler
5 (1 review)
Product Code: 792465

Grant Vortex Internal Pro 21kW Combi Oil Boiler

Retail price

£3,132.12

each
£2,610.10 ex. vat

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Greenstar Heatslave II Ext 12/18 2022+
Product Code: 267234

Greenstar Heatslave II Ext 12/18 2022+

Retail price

£3,430.19

each
£2,858.49 ex. vat

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Greenstar Heatslave II Ext 25/32 2022+
Product Code: 267249

Greenstar Heatslave II Ext 25/32 2022+

Retail price

£3,839.89

each
£3,199.91 ex. vat

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Greenstar Heatslave II 12/18 2022+
Product Code: 267238

Greenstar Heatslave II 12/18 2022+

Retail price

£2,987.87

each
£2,489.89 ex. vat

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Showing 1—11 items of 11

Related products

4.5 (2 reviews)
This innovate Eco outdoor module oil boiler system is part of Grants high efficiency Vortex range and comes a factory fitted multi-directional flue. Perfect for residential use, it has a high quality external powder coated robust casing, built-in frost protection, a mains isolating switch and a test switch. External floor mounting installation.
Boiler Type
Heat Only
Depth
505 mm
Height
908 mm
Width
505 mm
Maximum Horizontal Flue 125mm
3 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.93
CH Condensing Max Output
21 kW
Heat Output
21 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Brand Name
Grant
Made To Order
N
Range Description
Grant Vortex Eco External
Manufacturer Model No
VTXOMECO15/21

£1,737.83

each (Inc. VAT)

+

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This quiet Vortex Pro Kitchen/Utility model features Grant's highly efficient original Vortex heat exchanger and turbulator baffle system - providing some of the highest efficiencies on the market. Environmentally friendly, this boiler is compatible with alternative energy technologies such as solar thermal systems. In addition, a plug-in programmer (not included) can be installed within the fascia. Internal floor mounting installation.
Boiler Type
Heat Only
Depth
563 mm
Height
1234 mm
Width
563 mm
Maximum Vertical Flue 125mm
19 L
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.936
CH Condensing Max Output
70 kW
Heat Output
70 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Brand Name
Grant
Made To Order
N
Range Description
Grant Vortex Pro Kitchen/Utility
Manufacturer Model No
VTX58/70

£2,807.68

each (Inc. VAT)

+

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The heat-only Vortex Pro Module external oil boiler from Grant features Grant's highly efficient original Vortex stainless steel heat exchanger - providing some of the highest efficiencies on the market. All Vortex Pro external modules benefit from factory-fitted multi-directional flueing options, the latest Riello burner technology, built-in boiler frost protection, a mains isolating switch and a test switch, and more. In addition, this boiler can even be used with an RF wireless programmer (not included) - simply plug in the receiver to the boiler control panel and then control the boiler from within the building. External floor mounting installation.
Boiler Type
Heat Only
Depth
385 mm
Height
879 mm
Width
385 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.93
CH Condensing Max Output
21 kW
Heat Output
21 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Brand Name
Grant
Made To Order
N
Range Description
Grant Vortex Pro Outdoor
Manufacturer Model No
VTXOM15/21

£1,808.80

each (Inc. VAT)

+

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This innovate Eco outdoor module oil boiler system is part of Grants high efficiency Vortex range and comes a factory fitted multi-directional flue. Perfect for residential use, it has a high quality external powder coated robust casing, built-in frost protection, a mains isolating switch and a test switch. External floor mounting installation.
Boiler Type
Heat Only
Depth
505 mm
Height
908 mm
Width
430 mm
SEDBUK SAP 2009 Rating
A
SEDBUK SAP 2005 Rating
0.924
CH Condensing Max Output
26 kW
Heat Output
26 kW
Solar Compatible
Yes
Years Guaranteed
2
Registered with the Energy Savings Trust
Yes
Brand Name
Grant
Made To Order
N
Range Description
Grant Vortex Eco External
Manufacturer Model No
VTXOMECO21/26

£2,124.55

each (Inc. VAT)

+

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Grant Vortex Eco Outdoor 15-21kW Heat Only Oil Boiler
Grant Vortex Eco Outdoor 15-21kW Heat Only Oil Boiler
This innovate Eco outdoor module oil boiler system is part of Grants high efficiency Vortex range and comes a factory fitted multi-directional flue. Perfect for residential use, it has a high quality external powder coated robust casing, built-in frost protection, a mains isolating switch and a test switch. External floor mounting installation.
£1,737.83 each (Inc. VAT)
Grant Vortex Pro Utility Kitchen Floor Standing Oil Boiler VTX58/70 70kW
Grant Vortex Pro Utility Kitchen Floor Standing Oil Boiler VTX58/70 70kW
This quiet Vortex Pro Kitchen/Utility model features Grant's highly efficient original Vortex heat exchanger and turbulator baffle system - providing some of the highest efficiencies on the market. Environmentally friendly, this boiler is compatible with alternative energy technologies such as solar thermal systems. In addition, a plug-in programmer (not included) can be installed within the fascia. Internal floor mounting installation.
£2,807.68 each (Inc. VAT)
Grant VTXOM15/21 Vortex Outdoor Pro Module 15-21kW Oil Boiler
Grant VTXOM15/21 Vortex Outdoor Pro Module 15-21kW Oil Boiler
The heat-only Vortex Pro Module external oil boiler from Grant features Grant's highly efficient original Vortex stainless steel heat exchanger - providing some of the highest efficiencies on the market. All Vortex Pro external modules benefit from factory-fitted multi-directional flueing options, the latest Riello burner technology, built-in boiler frost protection, a mains isolating switch and a test switch, and more. In addition, this boiler can even be used with an RF wireless programmer (not included) - simply plug in the receiver to the boiler control panel and then control the boiler from within the building. External floor mounting installation.
£1,808.80 each (Inc. VAT)
Grant VTXOMECO21/26 Vortex Eco Outdoor 21-26kW Oil Boiler Vtxom
Grant VTXOMECO21/26 Vortex Eco Outdoor 21-26kW Oil Boiler Vtxom
This innovate Eco outdoor module oil boiler system is part of Grants high efficiency Vortex range and comes a factory fitted multi-directional flue. Perfect for residential use, it has a high quality external powder coated robust casing, built-in frost protection, a mains isolating switch and a test switch. External floor mounting installation.
£2,124.55 each (Inc. VAT)