Grant Oil Boilers

Upgrade your heating with Grant boilers built for efficiency and long-term reliability. This category features a full range of Grant oil boilers, including high-performance condensing models trusted across the UK and Northern Ireland. These systems fit seamlessly into off-grid homes and commercial properties that demand dependable heat.

 

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  • Grant 12 Litre Expansion Vessel | Part No. MPSS01, 2812800, 13A6001200
  • Grant Vortex 50-90 Condensing Boiler (Red Cased) - 15-26 kW
  • Grant Vortex External Powder Coated High Efficiency Boiler
  • Grant Vortex External Combi Boiler | 26kw or 36kw
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Grant 12 Litre Expansion Vessel | Part No. MPSS01, 2812800, 13A6001200
Grant Grant 12 Litre Expansion Vessel | Part No. MPSS01, 2812800, 13A6001200
£48 GBP
 In stock
Grant Vortex 50-90 Condensing Boiler (Red Cased) - 15-26 kW
Grant Grant Vortex 50-90 Condensing Boiler (Red Cased) - 15-26 kW
£1,440 GBP
 Only 5 units left
Grant Vortex External Powder Coated High Efficiency BoilerGrant Vortex External Powder Coated High Efficiency Boiler
Grant Grant Vortex External Powder Coated High Efficiency Boiler
(2)
From £1,700 GBP
 In stock, 10 units
Choose options
Grant Vortex External Combi Boiler | 26kw or 36kwGrant Vortex External Combi Boiler | 26kw or 36kw
Grant Grant Vortex External Combi Boiler | 26kw or 36kw
(1)
From £2,999.99 GBP
 In stock, 12 units
Choose options
Save £169 GBP
Grant Euroflame 50-90 Boiler-house Condensing Boiler
Grant Grant Euroflame 50-90 Boiler-house Condensing Boiler
£1,330 GBP £1,499 GBP
 In stock, 91 units
Grant Vortex 90-120 Boilerhouse Condensing Boiler 26-36kw
Grant Grant Vortex 90-120 Boilerhouse Condensing Boiler 26-36kw
£1,800 GBP
 Only 3 units left
Grant EuroFlame HE Module Boiler External 50-90 (15-26kw) - C/W BurnerGrant EuroFlame HE Module Boiler External 50-90 (15-26kw) - C/W Burner
Grant Grant EuroFlame HE Module Boiler External 50-90 (15-26kw) - C/W Burner
£1,330 GBP
 Only 1 unit left
Grant Vortex Pro 26 Internal Floor Standing Combination Oil Boiler Only Erp, 26 KWGrant Vortex Pro 26 Internal Floor Standing Combination Oil Boiler Only Erp, 26 KW
Grant Grant Vortex Pro 26 Internal Floor Standing Combination Oil Boiler Only Erp, 26 KW
£3,900 GBP
 Only 3 units left
Grant EuroFlame HE Module Boiler External 90-120 - C/W BurnerGrant EuroFlame HE Module Boiler External 90-120 - C/W Burner
Grant Grant EuroFlame HE Module Boiler External 90-120 - C/W Burner
£1,900 GBP
 Only 3 units left
Grant EFCON90120MOD Module Euroflame 90-120 Outdoor Condensing Boiler
Grant Grant EFCON90120MOD Module Euroflame 90-120 Outdoor Condensing Boiler
£1,700 GBP
 Only 3 units left
GRANT VORTEX HE UTILITY BOILER 50-90
Grant GRANT VORTEX HE UTILITY BOILER 50-90
£1,900 GBP
 In stock, 8 units

Built for Efficiency, Performance & Long-Term Value

Every Grant oil boiler in our range is selected for fuel efficiency, consistent output, and proven durability. We stock Grant because their engineering delivers dependable performance in demanding off-grid environments while meeting modern efficiency standards.

These systems are ideal where gas is unavailable and running costs must stay controlled.

You’ll benefit from:

  • High-efficiency grant condensing oil boilers that reduce fuel usage
  • Strong performance across popular models like the Grant Vortex 50/90
  • Compact designs for flexible indoor or outdoor installation
  • Long-term reliability backed by UK manufacturer support
  • Competitive grant oil boilers prices UK with strong trade value

We only stock Grant models that offer real-world performance and long service life—no underpowered variants or unsupported imports.

Order Grant Oil Boilers Online with Confidence

Whether you're comparing grant boiler prices, upgrading an older system, or pricing a grant condensing boiler, Spares Direct makes purchasing fast and secure. Our range supports domestic and commercial installs across the UK and Northern Ireland.

We offer:

  • Fast UK & Northern Ireland delivery
  • Competitive grant condensing oil boiler prices Northern Ireland
  • Trade-friendly pricing and bulk order support
  • Expert guidance for correct sizing and compatibility
  • Genuine Grant boilers with full manufacturer backing

Order online today or contact our team for support on selecting the right output and configuration for your project.

FAQs — Grant Oil Boilers