Radiators vs Underfloor Heating: What’s Cheaper to Run?
If you’re considering upgrading your home heating system, the big question is: which is more cost-effective to run—radiators or underfloor heating? The answer depends on your setup, usage habits, and insulation levels.
Here’s a side-by-side look at the pros, cons, and costs of both systems to help you make the best decision for your home.
How Each System Works
Radiators:
- Heat a room by convection
- Rely on high-temperature water (60–80°C)
- Create hot and cold zones
Underfloor Heating:
- Heats by radiation from the floor up
- Operates at lower water temps (30–50°C)
- Warms evenly across the space
Installation Cost Comparison
| System | Typical Cost |
| Radiators | £1,500–£2,500 for full house (standard) |
| UFH (Electric) | £50–£75/m² |
| UFH (Water) | £80–£120/m² |
Underfloor heating is more expensive upfront, particularly wet systems, but delivers significant savings over time—especially in well-insulated homes.
Running Costs: Which is Cheaper?
Electric UFH:
- Higher cost per kWh
- Best for small, infrequently used rooms
Water UFH:
- Much cheaper to run than electric or radiators
- Especially efficient when paired with heat pumps or solar panels
Radiators:
- Quick to heat but inefficient in large spaces
Requires high energy input, especially in open-plan layouts
Efficiency and Comfort
- UFH offers zoned control = less waste
- Radiators often result in overheating some rooms
- UFH runs at lower temps for the same comfort level = energy savings
FAQs
Q: Are radiators cheaper to install than underfloor heating?
A: Yes, but they may cost more to run long-term—especially in modern, well-insulated homes.
Q: Can I keep both systems?
A: Yes! Many homes use UFH downstairs and radiators upstairs to balance comfort and cost.
Q: Does underfloor heating work with combi boilers?
A: Yes, though a mixing valve may be required to lower the water temperature.
Ditch high energy bills and cold corners.
Underfloor heating from Interior Screed Ltd offers superior comfort and long-term savings—tailored to your home and budget.
Speak to our experts today for a full running cost comparison.
