Fuel Options: Hot water / Electric / Dual fuel(electric requires element, heating liquid, vents and caps) Costco Online UK Limited, UK Home Office, Hartspring Lane, Watford, Hertfordshire, WD25 8JS. Registered in England and Wales No. 8055444 New enlarged battery design: The 25% larger radiant surface ensures a faster air flow emission and increased chimney effect which means better comfort Fuel Options: Hot water, electric and dual fuel (Electric requires element, heating liquid, vents and caps)

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Fuel Options: Hot Water / Electric / Dual fuel (electric requires element, heating liquid, vents and caps) All radiators have a BTU rating, which essentially tells you how much heat they can generate. Use our handy BTU calculator below to work out what size you need. What is a BTU? This impressive slim-line Dragon 4 radiator from De'Longhi is perfect for large rooms or spaces up to 75 m³. It has a powerful 2500 Watt output and 3 heat settings, making it easy for you to find the ideal temperature and stay toasty warm. It boasts an increased radiant surface that delivers better and more evenly spread heat distribution - faster! Buy It Direct Ltd is a limited company registered in England. Registered number 04171412. Registered office: Unit A Trident Business Park, Leeds Road, Huddersfield, West Yorkshire, HD2 1UA.BTU stands for British Thermal Units and represents the level of heat a radiator provides. The required BTU level to heat your room will influence the size of your radiators. Fortunately, we offer numerous options in all shapes, styles and sizes for you to find one that's right for you. How is it calculated? This figure is calculated by taking into consideration the dimensions of your room (width, length, height) and the type of windows (such as single or double glazing). You can either use one radiator to reach the total BTU level required, or a number of radiators which reaches the required BTU level when added together - let's get to it! Why do I need to work out my BTU?