Tough and reliable, the galvanised steel Grant Vortex Pro External 15/26 oil boiler has a weatherproof powder-coating and inbuilt frost resistance for effective all-weather operation. Supplied with a factory-fitted flexible flue and free from complicated wiring and plumbing, this compact boiler is extremely easy and quick to install. It is fitted with the Grant Vortex heat exchanger and a Riello low-NOx burner for efficient, ErP A-rated heating.

Grant Vortex Pro External 15/26 ErP external oil boiler

Part of an award-winning range, the robust Grant Vortex Pro External 26/36 boiler module is built from galvanised steel with a weatherproof powder-coating and built-in frost resistance for protection in all weather conditions. Fast and easy to install in the most convenient location, this boiler is supplied with a factory-fitted flexible flue and has no complex wiring or plumbing to deal with. Featuring the unique Grant Vortex heat exchanger and Riello low-NOx burner, the highly efficient Vortex Pro has an ErP A rating for reduced waste and lower bills.

Grant Vortex Pro External 26/36 ErP external oil boiler

Designed to meet low-NOx regulations, the Grant Vortex Pro External Combi 26 external boiler is part of an award-winning range featuring Riello low-NOx technology. Incorporating Grant's patented heat exchangers with their large surface areas and low water content, this 26kW boiler has an ErP A rating for heating and B rating for hot water, improving efficiency in the home. Standing up to all weathers, the Vortex Pro External has a robust powder-coated casing and built-in frost protection for year-round reliability, even in challenging weather conditions.

Grant Vortex Pro External Combi 26 oil boiler 26kW

Designed to meet low-NOx regulations, the Grant Vortex Pro External Combi 21 external boiler is part of an award-winning range featuring Riello low-NOx technology. Incorporating Grant's patented heat exchangers with their large surface areas and low water content, this 21kW boiler has an ErP A rating for heating and B rating for hot water, improving efficiency in the home. Standing up to all weathers, the Vortex Pro External has a robust powder-coated casing and built-in frost protection for year-round reliability, even in challenging weather conditions.

Grant Vortex Pro External Combi 21 oil boiler 21kW

Reduce your carbon footprint and lower fuel bills with the ErP A-rated Grant Vortex Pro External Combi 26 boiler. Providing heating and hot water without the need for an additional water tank, this 26kW combi boiler is ideal for homes where space is at a real premium thanks to the hard-wearing powder-coated casing and inbuilt frost protection that allow it to be safely sited outside of the house. Fitted with the reliable Riello RDB low NOx burner for compliancy with 2018 low NOx legislation, this combi provides peace of mind as well as the increased hot water performance that comes with Grant's larger sized heat exchangers.

Grant Vortex Pro External Combi 26 ErP high efficiency outdoor combi oil boiler

Helping to lower your carbon footprint and reduce fuel bills, the ErP A-rated Grant Vortex Pro External Combi 21 boiler is fitted with the brand's high performance larger sized heat exchanger and an ultra-reliable Riello RDB burner for compliancy with 2018 low NOx legislation. Providing heating and instant hot water on demand without the need for an additional water tank, this 21kW combi boiler is ideal for those family homes where space is limited thanks to its robust powder-coated casing and built-in frost protection that allow it to be sited in the garden or garage without any risk of adverse effects or additional maintenance requirements.

Grant Vortex Pro External Combi 21 ErP high efficiency outdoor combi oil boiler

Robustly built to withstand challenging outdoor conditions, the steel-enclosed Grant Vortex Eco External 26/35 condensing boiler is designed for installation outside the home, against a wall or as a freestanding unit. The boiler's multi-directional flue and conveniently quiet operation make siting easy in even the most difficult of locations while internal components, including a tough stainless steel heat exchanger and Riello RDB low-NOx burner, help to achieve an ErP A rating.

Grant Vortex Eco External System 26/35 floor standing oil boiler

Robustly built to withstand challenging outdoor conditions, the steel-enclosed Grant Vortex Eco External 21/26 condensing boiler is designed for installation outside the home, against a wall or as a freestanding unit. The boiler's multi-directional flue and conveniently quiet operation make siting easy in even the most difficult of locations, while internal components including a tough stainless steel heat exchanger and Riello RDB low-NOx burner help to achieve an ErP A rating.

Grant Vortex Eco External System 21/26 floor standing oil boiler

The steel-enclosed Grant Vortex Eco External 15/21 condensing boiler is tough and reliable, allowing for installation anywhere outside of the home and standing up to all conditions. With a multi-directional flue and extremely low noise levels, this unit makes installation easy and flexible while cutting edge components such as a Riello RDB low-NOx burner and Grant's own design stainless steel heat exchanger provide ErP A-rated efficiency and reliable operation even under the stresses of inclement weather.

Grant Vortex Eco External 15/21 floor standing heat only oil boiler

Robustly built to withstand challenging outdoor conditions, the steel-enclosed Grant Vortex Eco External 15/21 condensing boiler is designed for installation outside the home, either against a wall or as a freestanding unit. The boiler's multi-directional flue and conveniently quiet operation make siting easy in even the most difficult of locations while internal components, including a tough stainless steel heat exchanger and Riello RDB low-NOx burner, help to achieve an ErP A rating.

Grant Vortex Eco External System 15/21 floor standing oil boiler

The steel-enclosed Grant Vortex Eco External 21/26 condensing boiler is tough and reliable, allowing for installation anywhere outside of the home and standing up to all conditions. With a multi-directional flue and extremely low noise levels, this unit makes installation easy and flexible while cutting edge components such as a Riello RDB low-NOx burner and Grant's own design stainless steel heat exchanger provide ErP A-rated efficiency and reliable operation even under the stresses of inclement weather.

Grant Vortex Eco External 21/26 floor standing heat only oil boiler

Ideal for those homes where space is at a premium, the Grant Vortex Pro External Combi 36 boiler serves heating and hot water in an instant without the need for an additional water tank and, thanks to the tough powder-coated casing and built-in frost protection, it can be safely installed and run from the garden, garage or cellar. Fitted with the super reliable Riello RDB burner for compliancy with 2018 low NOx legislation and offering an ErP A rating, this 36kW combi reduces environmental impact and fuel bills while increasing hot water performance via Grant's larger sized heat exchangers.

Grant Vortex Pro External Combi 36 ErP high efficiency outdoor combi oil boiler

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External Oil Boiler