The Grant Vortex condensing oil boiler range comprises of the most efficient and reliable oil fired boilers in Ireland.
Our condensing boiler range is available in 63 models with outputs from 12 – 70kW. Depending on the age and make of an old boiler, upgrading an old non-condensing oil boiler to a Grant Vortex condensing oil boiler can help save up to 25% on annual fuel bills.
The Vortex condensing oil boiler range comes in various models including boilerhouse, outdoor, utility and wall hung variants.
For the past 40 years Grant has developed some of the most innovative and efficient oil-fired boilers in the UK and Ireland. Utilising our patented Vortex stainless steel secondary heat exchanger, Grant boilers are designed and manufactured to the highest standards so you can be confident in their durability and efficiency. We believe in simplicity, and while our technology is advanced, our boilers are low maintenance and easy to install. And with over 60 models and hundreds of different EZ-Fit flue combinations there's sure to be a solution that's right for you.