F.L. Bone is the sole New Zealand agent for award winning Irish brand, Grant Diesel Boilers. Grant produces the most efficient boilers currently available on the market. Independent testing laboratory SEDBUK tests all boilers and Grant has 15 boilers on the top 20 list. Most boilers run at 70-80% efficiency, but Grant's new generation condensing boilers deliver efficiency levels of up to 97%.
We offer both indoor and outdoor models with a variety of output options to suit the size/scale of your home. You can also choose between a standard or combination boiler, which in addition to heating your home, also provides instant domestic hot water.