Grant’s new boiler house models are ideal for locations that are difficult to access With well over a million UK homes using oil as their main fuel for heating and hot water, consumer interest in lowering running costs, improving system efficiency and, wherever possible, reducing carbon emissions, is paramount. The UK’s most efficient range of oil-fired boilers, encompassing 39 different model variations, each fitted with biofuel compatible burners, should therefore spark a lot of interest over the coming months.