Complete Radiator Size Guide
Find the perfect radiator for your BTU requirements and room type
Understanding BTU & Radiator Sizing
BTU (British Thermal Unit) measures heat output. Knowing your room's required BTU is crucial for selecting a radiator that will efficiently heat your space. If you don't know your BTU requirement, try our BTU Calculator first!
Quick Room Type Selection
Choose a common room type to see suitable radiators instantly
Enter Your BTU Requirement
Input your specific BTU value or use the room presets above
Recommended Radiators for 0 BTU
Multiple Radiator Solutions
For better heat distribution or when single radiators aren't suitable
Understanding Radiator Types
Choose the right radiator type for your specific needs and space
Type 10 (Single Panel)
Slim profile, lowest heat output, ideal for tight spaces
Advantages
- Space-saving design
- Quick heat-up time
- Lower cost option
Considerations
- Lower BTU output
- Less heat retention
Best For
Small rooms, under windows, tight spaces
Type 22 (Double Panel)
Most popular choice, excellent balance of size and output
Advantages
- Good heat output
- Reasonable depth
- Best value for money
Considerations
- Moderate heat retention
- Standard appearance
Best For
Most rooms, living rooms, bedrooms
Type 33 (Triple Panel)
Highest heat output for horizontal radiators
Advantages
- Maximum BTU output
- Excellent heat retention
- Efficient heating
Considerations
- Deeper profile
- Higher cost
- Slower heat-up
Best For
Large rooms, poorly insulated spaces
Vertical/Designer
Space-saving vertical design with style
Advantages
- Space-efficient
- Stylish appearance
- Modern aesthetic
Considerations
- Higher cost
- Limited BTU range
- Complex installation
Best For
Modern homes, limited wall space