Help & Information

We’re dedicated to helping you choose the perfect radiator solution for your home. Explore our guides,

calculators and other resources, created to help you feel confident when buying your next radiator.

How to buy a radiator

There’s a lot of factors to consider when buying a radiator. Our guide to buying radiators online walks you through exactly what you need to do.

BTU calculator

Calculate your room's BTU requirement to understand how much heat you need radiators to put out to heat the room effectively.

MARC & EN442, the facts about buying a radiator 

The most crucial element when considering the purchase of a new radiator is the output of the product. The radiator has one job, to provide you with the necessary heat you require for the space you are heating.

For hydronic radiators, which go onto a water-based central heating system, there are a few simple factors that govern output; The temperature of the water when it leaves the boiler/heat source (known as the flow temperature) and the total surface area and amount of material contained within the product that will heat up, and therefore “radiate”.


Explore our wealth of information, brochures, fitting instructions and much more. All are available to download so you can refer to them on the go.

What is BTU? The BTU rate of a radiator is how much heat the radiator will emit, and is there to help you decide if a radiator is the correct size for your room or not. It’s important to know how much heat your room needs in order for your system to work efficiently.