Grant Oil Boilers offer over 30 years of design & manufacturer, specifically in oil fired boilers. The Grant Boiler range offers reliability & efficiency on all the Oil boiler products. PlumbNation assures its customers that Grant UK offers cost effective oil boiler solutions to rising energy costs. Offering condensing oil boilers, combination oil boilers, kitchen/utility oil boilers, and outdoor/external oil boilers, Grant Oil Boilers & PlumbNation are pleased to supply these oil fired boilers at the cheapest prices in the UK.