radiator buying guide
How to choose the perfect radiator for your home
Start Your Journey
Choosing the right radiators plays a big role in keeping your home warm and energy-efficient.
This guide breaks down everything you need to consider, from selecting the perfect size to understanding BTU output.
The right radiator doesn’t just warm your home—it can lower energy bills and even double as a stylish design feature.
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In This Guide
Types
Size Guide
BTU Calculator
Help & Advice
Valve Guide
Install Guide
Bleeding Tips
Materials
Radiator Types
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Shop All RadiatorsChoosing the Right Radiator
How big is your room?
Knowing your room size is the starting point. It dictates how much heating power you need, but also physically how much wall space is available.
Rough guide: Small rooms usually only need 1 radiator. Larger rooms (over 6m long) or L-shaped rooms often benefit from 2 smaller radiators to eliminate cold spots.
How many radiators do I need?
The calculator gives you the Total BTU requirement for the whole room, not necessarily for a single radiator.
You can achieve this total using one or multiple radiators:
- One Radiator: You need a single radiator that meets the total BTU figure on its own.
- Two or more: Divide the Total BTU by the number of radiators.
Example: If your room needs 6,000 BTU total.
You could buy 1x 6,000 BTU radiator OR 2x 3,000 BTU radiators.
You could buy 1x 6,000 BTU radiator OR 2x 3,000 BTU radiators.
